PRODUCT GUIDE

Publication No: EN-SBS-PG-001 February 2003

Contents

Introduction

Introduction

2

Range Summary

3

Recombination Technology

4

Construction

5

Features and Benefits

6

Battery Sizing

7-8

PowerSafe SBS standby power batteries

Enersys has earned an international

utilise advanced pure lead, thin plate

reputation for quality and reliability

technology to achieve exceptionally high

based on more than 100 years

performance, energy density, reliability

experience in the manufacture of

and a long, low maintenance service life

batteries, and is at the forefront of new

in a wide range of applications and

product design to meet customers

operating environments. The range

increasing power requirements.

includes both top and front terminal designs for easy installation and maintenance on racks, shelves and in

Performance Data

9-14

cabinets. PowerSafe SBS combine the benefits of

Performance Information Installation

15-16 17

high performance and long life in a cost effective battery solution for tele-communications, UPS, electric

Housings

18

utillities and engine starting applications.

Charging Maintenance

19-21 22

PowerSafe SBS batteries are designed using proven gas recombination technology, which removes the need for regular water addition. The use of gas recombination technology for lead acid batteries has completely changed the concept of standby power. This technology provides the user with the freedom to use lead acid batteries in a wide range

PowerSafe SBS batteries are

of applications. The minimal level of gas

manufactured in ISO 9001 certified

production allows battery installation in

factories.

cabinets or on stands, in offices or near

This manual describes the PowerSafe SBS product range, physical characteristics and electrical

main equipment, thus maximising space utilisation and reducing battery accommodation and maintenance costs.

performance, and contains the basic information for the selection, storage, installation, operation and maintenance of PowerSafe SBS batteries.

2

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Publication No: EN-SBS-PG-001 February 2003

Range Summary

Monobloc Specifications Dimensions mm (inches)

Model

Nominal Voltage (V)

C8 to 1.75Vpc @ 25°C (77°F)

C10 to 1.80Vpc @ 20°C (68°F)

Terminal Fastener1

Length

Width

Height

Weight kg (lbs)

SBS8

12

7

7

M4 F

138 (5.4)

86 (3.4)

101 (4.0)

2.7 (5.9)

SBS15

12

14

14

M6 M

200 (7.9)

77 (3.0)

140 (5.5)

5.7 (12.5)

SBS30

12

26

26

M6 M

250 (9.8)

97 (3.8)

156 (6.1)

9.5 (20.9)

2

HB30

12

26

26

M6 M

250 (9.8)

97 (3.8)

156 (6.1)

9.6 (21.1)

SBS40

12

38

38

M6 M

250 (9.8)

97 (3.8)

206 (8.1)

12.7 (28.0)

SBS60

12

51

51

M6 M

220 (8.7)

121 (4.8)

260 (10.2)

18.5 (40.7)

208 (8.2)

239 (9.4)

3

21.2 (46.6)

239 (9.4)

3

15.7 (34.5)

3

22.7 (49.9)

SBS110

6

SBS114

4

116 116

115 115

M8 M M8 M

200 (7.9) 200 (7.9)

208 (8.2)

SBS130

6

133

132

M8 M

200 (7.9)

208 (8.2)

239 (9.4)

SBS134

4

133

132

M8 M

200 (7.9)

208 (8.2)

239 (9.4)3

26.8 (37.0)

SBS300

2

307

310

M8 M

200 (7.9)

208 (8.2)

239 (9.4)3

21.7 (47.7)

SBS390

2

361

360

M8 M

200 (7.9)

208 (8.2)

239 (9.4)3

23.2 (51.0)

SBSJ13

12

12

12

M6 F

178 (7.0)

87 (3.4)

132 (5.2)

5.7 (12.6)

SBSJ16

12

15

15

M6 F

186 (7.3)

79 (3.1)

171 (6.7)

6.7 (14.8)

SBSJ30

12

26

26

M6 F

178 (7.0)

168 (6.6)

127 (5.0)

11.8 (26.0)

SBSJ40

12

39

39

M6 F

201 (7.9)

171 (6.7)

173 (6.8)

17.4 (38.2)

SBSJ70

12

64

64

M6 F

328 (12.9)

166 (6.5)

175 (6.9)

28.8 (63.4)

150 (5.9)

5

10.3 (22.7)

5

12.8 (28.2)

4

SBSB8

12

31

31

M8 F

280 (11.0)

97 (3.8)

4

SBSB10

12

34

34

M8 F

280 (11.0)

97 (3.8)

175 (6.9)

SBSB144

12

62

62

M8 F

280 (11.0)

97 (3.8)

256 (10.1)5

19.1 (42.0)

SBSC114

12

91

92

M8 F

395 (15.6)

105 (4.1)

264 (10.4)

28.0 (61.6)

Notes: 1 2 3 4

M = male stud, F = female thread supplied with wiring harness dimension includes top cover SBSB8, B10, B14, and C11 are available with terminals on the top face or on the front face. For front terminals add ‘FT Adapter’ to the model number 5 SBSB8, B10 and B14 are available with a venting manifold, with a spigot at the front or back. The manifold increases monobloc height by 9mm.

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Publication No: EN-SBS-PG-001 February 2003

3

Recombination Technology

How gas recombination works When a charge current flows through a fully charged conventional lead acid cell, electrolysis of water occurs to produce hydrogen from the negative electrode and oxygen from the positive electrode. This means that water is lost from the cell and regular topping up is needed.

Therefore, provided oxygen can be transported to the negative electrode, conditions are ideal for a rapid reaction between lead and oxygen: ie. This oxygen is electrochemically reduced on the negative electrode according to the following scheme,

2e- + 2H+ + However, evolution of oxygen gas and hydrogen gas does not occur simultaneously, because the efficiency of recharge of the positive electrode is not as good as the negative electrode. This means that oxygen is evolved from the positive plate before hydrogen is evolved from the negative plate.

1/

2

O2 ➝ H2O

and the final product is water.

The current flowing through the negative electrode drives this reaction instead of hydrogen generation which would occur in a flooded cell.

At the same time that oxygen is evolved from the positive electrode, a substantial amount of highly active spongy lead exists on the negative electrode before it commences hydrogen evolution.

This process is called gas recombination. If this process was 100% efficient no water would be lost from the cell. By careful design of the constituents within the cell, gas recombination up to 99% is achieved.

Principle of the Oxygen Reduction Cycle H2

Electrolyte

O2

SBS Oxygen evolved from positive plate transfers to negative and recombines to form water.

CONVENTIONAL CELL Oxygen and hydrogen escape to the atmosphere

Figure 1

Separator

Recombination efficiency Recombination efficiency is determined under specific conditions by measuring the volume of hydrogen emitted from the battery and converting this into its ampere hour equivalent. This equivalent value is then subtracted from the total ampere hours taken by the battery during the test period, and the remainder is the battery’s recombination efficiency and is usually expressed as a percentage.

4

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As recombination is never 100%, some hydrogen gas is emitted from SBS cells and batteries through the self-regulating valve. The volume of gas emitted is very small and for all practical purposes may be ignored.

Publication No: EN-SBS-PG-001 February 2003

Construction

1

Terminal Posts High conductivity post for high rate discharge.

2

Pillar Seal Compressed rubber grommet for superior integrity.

3

Container and Lid Heat-sealed for maximum strength. SBS cases are made of ABS and SBS J are made of Noryl. Both materials are flame retardant (UL94 V-0).

4

One Way Valve Ensures no oxygen can enter the cell. Optional remote venting systems are available. Vent adapters and a neoprene tubing system transport gases outside the battery compartment. This is only a safety measure because, under normal operating conditions, gas emission is virtually negligible.

5

Pure Lead Plates Advanced thin grid technology and high purity materials for high performance, efficient charging and long life.

6

2

Negative Plates Active material is balanced against the positive for 4

optimum performance and recombination 7

efficiency.

7

Flame Arrestor

1

The valve retaining disc also functions as a flame Arrestor to prevent ingress of a spark or flame.

8 6

8

3 5

Separators Separator material is resilient to scuffs and tears to minimise risk of internal shorts caused by a

9

damaged separator.

9

Electrolyte Medical grade dilute sulphuric acid is absorbed into separator material.

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Publication No: EN-SBS-PG-001 February 2003

5

Features and Benefits

Design Life ■

Orientation

High purity materials give SBS batteries a long float life.

The batteries can be installed in any orientation except

On constant voltage float charge systems the design life

upside down (vents on the bottom).

expectancy is 10+ years at 25°C/77°F and 15+ years at

Terminal Position

20°C/68°F.

■

Energy Density ■

The SBS range comprises of both top and front terminal models, and JIS and unique SBS container sizes for

The advanced thin plate pure lead technology promotes

maximum battery layout flexibility.

exceptionally efficient utilisation of the active materials. SBS energy density is typically 12 to 30 % higher than

Low Gas Emission and Remote venting

conventional lead calcium VRLA batteries. ■

virtually negligible. On SBS15-60, SBS J and front terminal

Operating Temperature ■

The recommended operating temperature range for optimum life and performance is 20°C/68°F to 25°C/77°F.

■

Under normal operating conditions, gas emission is

However, SBS can be operated in the temperature range

models optional venting systems are available to vent gas outside the battery compartment. The remote venting system allows batteries to be installed in applications where there is little ventilation.

-40°C/-40°F to 50°C/122°F, and by using the optional metal jacket the maximum operating temperature of the SBS J types is increased to 80°C/176°F. ■

Operation at higher or lower temperature will effect battery life or performance respectively: -40°C/-40°F to 19°C/66°F

20°C/68°F to 25°C/77°F

26°C/78°F to 50°C/122°F

Lower capacity

Optimum life and performance

Shorter life

Transportation ■

SBS products are classified as “nonspillable wet electric storage batteries” and may be shipped by air or ground transportation without restriction.

■

The batteries, their shipping container and external packaging must be labelled “nonspillable” or “nonspillable battery”.

■

SBS batteries are in compliance with: USA 49 Code of Federal Regulations section DOT 173.159 ICAO/IATA Packaging Instruction 806 and Special Provision A67 IMDG UN No 2800 Class 8 Exempt when securely packaged and protected against short circuts.

6

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Publication No: EN-SBS-PG-001 February 2003

Battery Sizing

Battery capacity is affected by the discharge rate, end

Step 4.

voltage, temperature and age.

Refer to the constant current discharge table for an end voltage of 1.75 Vpc, and in the 4 hour column find the model that will provide the load current.

Battery sizing calculations should include factors for

In this example an SBS60 will provide 11.7 amps/

temperature and loss of capacity over life. A battery usually

4 Hrs/1.75Vpc SBS60 is a 12V six cell monobloc,

is determined to have reached end of life when its capacity

so 4 blocs are required for a 48V battery.

has fallen to 80% of its rated capacity.

UPS Applications Strings of the same SBS batteries can be connected in parallel to obtain higher capacities.

Telecom Applications In general, telecom applications are a constant power or

In general, UPS systems are rated in kVA, (kilo Volt Amperes). This is a multiplication of the output voltage in Kilo Volts and output current in amperes. The kVA rating is always an AC rating. The kVA rating may be converted to kW by simply multiplying the kVA by the Power Factor (PF).

constant current load for a specified period, to a specified end voltage. The appropriate battery model can be selected

kW Rating of UPS = (kVA of UPS) x (PF of UPS)

by referring to the Discharge Tables.

kW Rating of UPS Battery =

kVA x PF Inverter Efficiency

EXAMPLE 1 The following information is needed: ■

Nominal system voltage

■

Minimum system voltage

■

Load (constant current or constant power)

■

Backup time

■

Temperature range

EXAMPLE 2 This first example covers a basic sizing procedure with no power factor or efficiency involvement. This procedure details only the fundamental steps required. In an example such as this the following information is needed as a minimum requirement:

A nominal 48V system requires a constant current of 9 Amps

(i)

system kilowatts

for 4 hours to a minimum of 42V at a minimum operating

(ii)

required autonomy (run time)

temperature of 20°C/68°F.

(iii)

minimum DC voltage

(iv)

maximum DC voltage

Step 1.

Number of cells = nominal system voltage divided by nominal cell voltage: 48V/ 2V = 24 cells

If the load is given in kVA, then the PF and inverter efficiency values must also be known.

Step 2.

Cell end voltage = minimum system voltage divided

Therefore, for a UPS requiring the following autonomy,

by the number of cells:

Battery kW Rating: 10

42V/ 24 cells = 1.75 volts per cell

Battery nominal voltage: 120 Battery end voltage: 1.67 Vpc

Step 3.

Correct load for temperature and ageing:

Battery run time: 10 minutes

Temperature factor = 1/Factor from Temperature Correction Chart = 1/0.978 = 1.022 Ageing factor = 100/80 = 1.25 9 amps x temperature factor x ageing factor = 9 amps x 1.022 x 1.25 = 11.5 Amps

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Publication No: EN-SBS-PG-001 February 2003

7

Battery Sizing

Step 1.

Number of cells needed per string

Step 2.

= 120 (nom.volt) /2 (nominal cell voltage)

Watts per cell required to support the load = Total power required from battery

= 60 cells Step 2.

no. of cells = 11.294 (kW)

Watts per cell required to support the load

60 (cells)

= 10,000 (Watts) /60 (cells)

= 188.2 Watts per cell

= 166.67 Watts per cell Step 3.

Step 4.

Refer to the constant power discharge tables for an

Step 3.

Refer to the constant power discharge tables for an

end voltage of 1.67 Vpc, and in the 10 minute

end voltage of 1.67 Vpc, and in the 15 minute

column find the model that can support a load of

column find the model that can support a load of

166.67 Watts per cell.

188.2 Watts per cell.

SBS40 will provide 205 Wpc for 10 minutes.

SBS60 will provide 206 Wpc for 15 minutes.

Calculate the number of blocs required to make up

Step 4.

Calculate the number of blocs required to make up

the battery string. The number of blocs

the battery string. The number of blocs

= System Nominal Voltage/Bloc Nominal Voltage

= System Nominal Voltage/Bloc Nominal Voltage

= 120V/12V = 10 blocs.

= 120V/12V = 10 blocs.

Therefore 10 SBS40 blocs are required to make up

Therefore 10 SBS60 blocs are required to make up

the battery string

the battery string

EXAMPLE 3

With both of these examples, by reference to the discharge

This example is slightly more complex in that it takes into

tables, it is possible to use a parallel string system with

account both the power factor and the system efficiency.

smaller SBS models.

UPS kVA rating: 12.0

These are basic examples. For split duty regimes and other

Inverter power factor: 0.80

more complex sizings, contact our sales department.

Inverter efficiency: 85% Battery nominal voltage: 120 Battery end-voltage: 1.67 Vpc Battery run time:15 minutes Step 1.

Total power required from battery =

kVA x PF Inverter Efficiency

= 12.000(kVA)x0.80(PF) 0.85 (Inv.eff) = 11.294 kW

8

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Publication No: EN-SBS-PG-001 February 2003

Performance Data Constant current discharge performance data

Constant Current Discharge (amps) to 1.85Vpc at 20°C/68°F SBS8 SBS15 SBS30 SBS40 SBS60 SBS110 SBS130 SBS300 SBS390 SBS J13 SBS J16 SBS J30 SBS J40 SBS J70 B8 B10 B14 C11

5 Min 33.6 59.3 110 139 173 290 370 826 866 47.2 57.4 105 142 235 146 129 193 248

10 Min 21.7 39.3 73.1 96.5 123 223 268 622 683 31.9 39.6 72.8 100 166 83.9 92.7 143 184

15 Min 16.3 30.0 55.7 75.3 97.0 183 215 500 567 24.6 30.7 56.4 78.5 130 61.4 72.6 115 149

20 Min 13.2 24.5 45.4 62.2 80.7 156 181 413 488 20.2 25.4 46.3 65.1 108 49.3 59.9 97.0 126

25 Min 11.1 20.8 38.2 53.3 68.7 137 157 357 429 17.2 21.7 39.5 55.9 92.8 41.6 51.0 84.2 110

30 Min 9.61 18.1 33.3 46.7 60.5 122 140 310 385 15.1 19.0 34.5 49.1 81.5 36.3 44.5 74.6 97.4

35 Min 8.49 16.1 29.6 41.7 54.2 110 126 282 349 13.4 16.9 30.6 43.8 72.7 32.3 39.5 67.1 87.8

40 Min 7.62 14.5 26.6 37.6 49.1 101 115 255 319 12.1 15.3 27.6 39.6 65.8 29.2 35.5 61.1 80.1

45 Min 6.92 13.2 24.3 34.4 45.0 92.9 106 239 295 11.0 13.9 25.1 36.2 60.1 26.6 32.3 56.1 73.7

1 Hr 5.44 10.5 19.3 27.4 36.1 75.7 86.3 187 241 8.79 11.1 19.9 28.9 47.8 21.4 25.5 45.2 59.7

2 Hrs 3.01 5.83 10.8 15.4 20.6 44.4 50.8 109 142 4.92 6.20 11.0 16.3 26.7 12.3 13.9 25.9 34.8

3 Hrs 2.11 4.09 7.56 10.8 14.6 31.9 36.6 78.1 102 3.46 4.34 7.67 11.4 18.6 8.80 9.66 18.3 24.9

4 Hrs 1.63 3.17 5.85 8.33 11.4 25.1 28.8 62.0 79.7 2.68 3.35 5.92 8.84 14.4 6.87 7.45 14.2 19.6

5 Hrs 1.34 2.59 4.79 6.81 9.34 20.7 23.8 52.0 65.8 2.19 2.73 4.83 7.22 11.7 5.64 6.09 11.7 16.1

6 Hrs 1.14 2.20 4.07 5.77 7.94 17.7 20.3 45.3 55.9 1.85 2.31 4.09 6.12 9.87 4.78 5.17 9.88 13.8

7 Hrs 1.00 1.91 3.53 5.01 6.91 15.5 17.8 40.3 48.7 1.61 2.00 3.55 5.31 8.54 4.14 4.51 8.58 12.1

8 Hrs 0.89 1.69 3.13 4.52 6.13 13.8 15.8 36.1 43.5 1.42 1.77 3.14 4.70 7.53 3.75 4.13 7.59 11.1

9 Hrs 0.80 1.52 2.81 3.97 5.50 12.4 14.3 32.8 39.0 1.28 1.59 2.82 4.21 6.74 3.35 3.91 6.80 10.0

10 Hrs 0.73 1.38 2.61 3.72 5.00 11.4 13.0 30.6 35.7 1.16 1.44 2.56 3.82 6.10 3.02 3.74 6.17 9.08

20 Hrs 0.40 0.73 1.43 2.04 2.68 6.19 6.94 17.2 19.0 0.61 0.75 1.36 2.01 3.16 1.53 2.10 3.22 4.92

1 Hr 5.54 10.6 19.6 27.9 36.9 77.6 88.8 201 247 8.94 11.4 20.3 29.6 49.1 21.9 25.7 46.4 61.3

2 Hrs 3.05 5.91 10.9 15.6 21.0 45.3 51.9 116 145 4.99 6.35 11.2 16.6 27.1 12.5 14.1 26.2 35.3

3 Hrs 2.13 4.15 7.66 10.9 14.9 32.5 37.3 83.7 103 3.50 4.45 7.80 11.6 18.9 8.89 9.8 18.4 25.2

4 Hrs 1.66 3.22 5.93 8.46 11.6 25.5 29.3 66.2 80.8 2.71 3.44 6.01 8.96 14.5 6.93 7.59 14.3 19.7

5 Hrs 1.36 2.63 4.86 6.91 9.49 21.0 24.2 54.3 66.5 2.22 2.81 4.90 7.32 11.8 5.68 6.21 11.7 16.2

6 Hrs 1.16 2.23 4.12 5.86 8.06 18.0 20.7 47.8 56.6 1.88 2.37 4.15 6.20 10.0 4.81 5.27 9.88 13.9

7 Hrs 1.01 1.94 3.58 5.08 7.02 15.7 18.1 41.6 49.3 1.63 2.06 3.61 5.38 8.62 4.17 4.60 8.58 12.1

8 Hrs 0.90 1.72 3.17 4.59 6.22 14.0 16.1 37.4 43.9 1.44 1.82 3.19 4.76 7.60 3.79 4.21 7.59 11.1

9 Hrs 0.81 1.54 2.85 4.03 5.59 12.6 14.5 34.3 39.4 1.30 1.63 2.86 4.27 6.81 3.38 3.99 6.80 10.0

10 Hrs 0.74 1.40 2.64 3.77 5.08 11.5 13.2 31.0 36.0 1.18 1.48 2.60 3.87 6.16 3.05 3.81 6.17 9.15

20 Hrs 0.41 0.74 1.46 2.06 2.71 6.26 7.03 17.3 19.2 0.62 0.77 1.39 2.04 3.21 1.58 2.11 3.24 5.01

1 Hr 5.62 10.7 19.9 28.3 37.6 79.3 91.1 216 254 9.08 11.6 20.7 30.2 50.3 22.3 26.0 47.4 62.7

2 Hrs 3.09 5.99 11.1 15.8 21.3 46.1 52.9 123 148 5.06 6.49 11.4 16.8 27.6 12.7 14.3 26.5 35.7

3 Hrs 2.16 4.21 7.76 11.1 15.1 33.0 37.9 87.0 105 3.55 4.55 7.91 11.8 19.1 8.98 10.0 18.5 25.4

4 Hrs 1.68 3.26 6.01 8.58 11.7 25.8 29.8 67.8 81.9 2.75 3.52 6.10 9.08 14.7 6.98 7.73 14.3 19.8

5 Hrs 1.38 2.67 4.92 7.01 9.63 21.3 24.6 56.7 67.4 2.25 2.87 4.98 7.42 11.9 5.72 6.33 11.7 16.3

6 Hrs 1.17 2.27 4.17 5.94 8.18 18.2 21.0 49.2 57.2 1.90 2.43 4.21 6.28 10.1 4.85 5.38 9.90 13.9

7 Hrs 1.02 1.97 3.63 5.15 7.12 15.9 18.3 42.4 50.1 1.65 2.11 3.66 5.45 8.70 4.20 4.69 8.59 12.2

8 Hrs 0.91 1.75 3.21 4.65 6.31 14.2 16.3 37.7 44.3 1.46 1.87 3.24 4.82 7.68 3.82 4.30 7.59 11.2

9 Hrs 0.82 1.57 2.88 4.08 5.66 12.8 14.7 34.5 39.7 1.31 1.67 2.91 4.32 6.87 3.41 4.06 6.81 10.1

10 Hrs 0.75 1.42 2.67 3.82 5.14 11.7 13.4 31.5 36.2 1.19 1.52 2.64 3.92 6.23 3.08 3.88 6.18 9.21

20 Hrs 0.41 0.75 1.48 2.08 2.82 6.32 7.1 17.3 19.3 0.63 0.79 1.41 2.07 3.26 1.61 2.13 3.27 5.09

Constant Current Discharge (amps) to 1.80Vpc at 20°C/68°F SBS8 SBS15 SBS30 SBS40 SBS60 SBS110 SBS130 SBS300 SBS390 SBS J13 SBS J16 SBS J30 SBS J40 SBS J70 B8 B10 B14 C11

5 Min 35.5 62.8 117 149 190 321 405 870 952 50.9 62.0 113 154 257 148 141 212 272

10 Min 22.5 40.6 75.5 101 129 239 286 664 733 33.5 41.7 76.6 106 178 86.5 97.1 154 198

15 Min 16.8 30.8 57.0 78.0 102 193 227 548 602 25.6 32.0 58.8 82.4 138 63.5 74.8 122 158

20 Min 13.5 25.0 46.7 64.1 83.8 163 190 471 511 20.9 26.3 48.0 67.9 114 51.0 61.2 102 132

25 Min 11.3 21.2 39.1 54.6 71.0 142 164 400 447 17.7 22.4 40.8 58.0 97.2 43.1 51.9 88.2 115

30 Min 9.81 18.4 34.0 47.8 62.3 126 145 346 401 15.5 19.6 35.5 50.8 84.9 37.4 45.1 77.8 101

35 Min 8.66 16.3 30.2 42.6 55.7 114 131 313 363 13.7 17.4 31.5 45.2 75.5 33.3 40.0 69.7 91.3

40 Min 7.76 14.7 27.2 38.4 50.4 104 119 282 331 12.4 15.7 28.3 40.8 68.1 30.0 36.0 63.2 83.0

45 Min 7.05 13.4 24.7 35.0 46.1 95.7 110 253 304 11.3 14.3 25.8 37.3 62.1 27.4 32.7 57.9 76.1

Constant Current Discharge (amps) to 1.75Vpc at 20°C/68°F SBS8 SBS15 SBS30 SBS40 SBS60 SBS110 SBS130 SBS300 SBS390 SBS J13 SBS J16 SBS J30 SBS J40 SBS J70 B8 B10 B14 C11

5 Min 37.3 66.1 124 160 206 352 440 986 1,041 54.4 66.4 121 166 279 150 153 231 295

10 Min 23.3 41.9 78.3 105 136 254 303 731 780 35.0 43.6 80.2 112 189 88.9 101 164 211

15 Min 17.2 31.5 58.6 80.4 105 203 238 581 630 26.5 33.2 61.0 86.0 146 65.4 76.8 129 167

20 Min 13.8 25.5 47.4 65.7 85.8 170 198 492 534 21.5 27.1 49.5 70.4 119 52.6 62.3 107 139

25 Min 11.6 21.5 40.0 55.9 73.1 147 171 421 465 18.2 23.0 41.9 59.9 101 44.3 52.7 92.0 120

30 Min 10.0 18.7 34.7 48.8 64.0 131 151 381 414 15.8 20.1 36.4 52.3 88.0 38.5 45.7 80.7 105

35 Min 8.83 16.6 30.7 43.3 57.0 117 135 333 373 14.0 17.8 32.2 46.5 78.0 34.2 40.5 72.0 94.4

40 Min 7.91 14.9 27.6 39.1 51.6 107 123 300 340 12.6 16.1 28.9 41.9 70.2 30.8 36.3 65.1 85.6

45 Min 7.17 13.6 25.1 35.6 47.1 98.2 113 275 314 11.5 14.6 26.3 38.2 63.8 28.1 33.0 59.5 78.3

Note: SBSB10 discharge rates are preliminary data and subject to revision.

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Publication No: EN-SBS-PG-001 February 2003

9

Constant Current Discharge (amps) to 1.70Vpc at 20°C/68°F SBS8 SBS15 SBS30 SBS40 SBS60 SBS110 SBS130 SBS300 SBS390 SBS J13 SBS J16 SBS J30 SBS J40 SBS J70 B8 B10 B14 C11

5 Min 39.0 69.1 130 169 222 382 474 1,062 1,133 57.7 70.5 128 177 300 152 164 249 318

10 Min 24.0 43.0 80.8 109 143 268 320 772 823 36.4 45.3 83.3 117 200 91 105 174 223

15 Min 17.7 32.1 60.1 82.5 108 211 248 614 658 27.2 34.2 62.8 89.1 152 67.2 78.4 135 175

20 Min 14.1 25.9 48.3 67.1 88.3 176 205 518 554 22.0 27.8 50.8 72.6 123 54.0 63.3 112 145

25 Min 11.8 21.8 40.7 56.9 75.0 152 176 448 481 18.5 23.5 42.9 61.6 104 45.5 53.3 95.2 124

30 Min 10.2 18.9 35.3 49.6 65.5 134 155 390 426 16.1 20.5 37.2 53.6 90.6 39.5 46.2 83.2 109

35 Min 8.99 16.8 31.2 44.0 58.2 120 139 353 384 14.3 18.2 32.8 47.6 80.2 35.0 40.9 74.1 97.2

40 Min 8.04 15.1 28.0 39.7 52.6 109 126 316 347 12.8 16.4 29.5 42.8 71.9 31.5 36.7 66.8 87.9

45 Min 7.29 13.7 25.5 36.1 48.0 100 116 289 321 11.7 14.9 26.7 38.9 65.3 28.7 33.3 60.9 80.2

1 Hr 5.71 10.8 20.1 28.6 38.2 80.8 93.0 221 259 9.20 11.8 21.0 30.8 51.3 22.8 26.2 48.2 64.0

2 Hrs 3.13 6.05 11.2 16.0 21.6 46.7 53.8 127 149 5.12 6.60 11.5 17.0 27.9 12.8 14.5 26.7 36.1

3 Hrs 2.19 4.26 7.85 11.2 15.3 33.4 38.5 88.6 107 3.59 4.63 8.01 11.9 19.3 9.07 10.2 18.6 25.5

4 Hrs 1.70 3.30 6.08 8.69 11.9 26.2 30.2 68.8 83.1 2.78 3.59 6.18 9.20 14.8 7.04 7.87 14.4 19.9

5 Hrs 1.40 2.71 4.97 7.10 9.75 21.6 24.9 58.0 68.2 2.27 2.93 5.04 7.51 12.0 5.76 6.46 11.7 16.4

6 Hrs 1.19 2.30 4.22 6.01 8.28 18.5 21.3 49.6 58.2 1.93 2.49 4.27 6.36 10.1 4.88 5.49 9.92 14.0

7 Hrs 1.04 2.00 3.67 5.22 7.21 16.1 18.6 42.8 50.6 1.68 2.16 3.71 5.52 8.79 4.23 4.78 8.60 12.3

8 Hrs 0.92 1.77 3.24 4.71 6.38 14.4 16.5 38.0 45.0 1.48 1.91 3.29 4.88 7.75 3.85 4.38 7.61 11.2

9 Hrs 0.83 1.59 2.91 4.13 5.73 12.9 14.9 34.8 40.3 1.33 1.71 2.95 4.38 6.94 3.44 4.14 6.83 10.2

10 Hrs 0.76 1.44 2.70 3.86 5.20 11.8 13.5 31.6 36.7 1.21 1.55 2.68 3.97 6.29 3.11 3.95 6.20 9.27

20 Hrs 0.42 0.8 1.49 2.09 2.84 6.38 7.20 17.3 19.4 0.64 0.81 1.43 2.10 3.30 1.65 2.15 3.29 5.16

1 Hr 5.77 10.9 20.2 28.8 38.5 81.6 94.1 222.5 261.5 9.27 11.9 21.2 31.0 51.8 23.0 26.4 48.7 64.6

2 Hrs 3.16 6.09 11.3 16.1 21.8 47.1 54.3 128.3 150.6 5.15 6.66 11.6 17.2 28.1 12.9 14.6 26.9 36.3

3 Hrs 2.21 4.29 7.89 11.3 15.4 33.6 38.8 89.2 107.2 3.61 4.68 8.07 12.0 19.4 9.12 10.3 18.7 25.6

4 Hrs 1.72 3.33 6.12 8.75 12.0 26.4 30.4 69.4 83.9 2.80 3.62 6.22 9.26 14.9 7.07 7.96 14.4 20.0

5 Hrs 1.41 2.73 5.01 7.15 9.82 21.8 25.1 58.4 68.9 2.29 2.97 5.08 7.56 12.1 5.79 6.53 11.8 16.4

6 Hrs 1.20 2.31 4.24 6.05 8.34 18.6 21.4 49.6 58.6 1.94 2.51 4.30 6.40 10.2 4.90 5.56 9.94 14.0

7 Hrs 1.05 2.01 3.69 5.25 7.25 16.2 18.7 42.8 50.9 1.69 2.18 3.74 5.56 8.84 4.25 4.84 8.62 12.3

8 Hrs 0.93 1.78 3.26 4.74 6.42 14.4 16.6 38.2 45.2 1.49 1.93 3.31 4.92 7.80 3.87 4.43 7.63 11.3

9 Hrs 0.84 1.60 2.93 4.16 5.77 13.0 15.0 34.8 40.5 1.34 1.73 2.97 4.41 6.98 3.46 4.19 6.84 10.2

10 Hrs 0.77 1.45 2.71 3.89 5.23 11.9 13.6 31.7 36.9 1.22 1.57 2.70 4.00 6.33 3.13 4.00 6.21 9.30

20 Hrs 0.42 0.76 1.49 2.09 2.86 6.41 7.24 17.3 19.4 0.64 0.82 1.45 2.11 3.33 1.66 2.16 3.30 5.19

1 Hr 5.80 10.9 20.3 28.9 38.7 82.1 94.7 226 264 9.30 12.0 21.3 31.2 52.1 23.2 26.5 49.0 65.0

2 Hrs 3.18 6.11 11.3 16.2 21.9 47.3 54.6 130 152 5.17 6.69 11.6 17.2 28.2 13.0 14.7 26.9 36.4

3 Hrs 2.23 4.30 7.92 11.4 15.4 33.8 39.0 89.7 109 3.63 4.70 8.10 12.0 19.5 9.15 10.3 18.7 25.7

4 Hrs 1.73 3.34 6.14 8.79 12.0 26.5 30.5 69.7 84.3 2.81 3.65 6.25 9.30 14.9 7.10 8.02 14.4 20.0

5 Hrs 1.42 2.74 5.03 7.18 9.86 21.9 25.2 58.9 69.4 2.30 2.98 5.10 7.60 12.1 5.80 6.58 11.8 16.5

6 Hrs 1.21 2.32 4.26 6.08 8.37 18.7 21.5 49.8 58.8 1.95 2.53 4.32 6.43 10.2 4.92 5.60 9.95 14.1

7 Hrs 1.05 2.02 3.70 5.27 7.28 16.3 18.8 43.1 51.3 1.69 2.20 3.76 5.59 8.87 4.26 4.88 8.64 12.3

8 Hrs 0.94 1.79 3.28 4.76 6.45 14.5 16.7 38.2 45.5 1.50 1.94 3.33 4.94 7.83 3.88 4.47 7.64 11.3

9 Hrs 0.84 1.61 2.94 4.17 5.79 13.1 15.0 35.0 40.8 1.35 1.74 2.99 4.43 7.01 3.47 4.22 6.85 10.2

10 Hrs 0.77 1.46 2.72 3.90 5.25 11.9 13.7 31.8 37.1 1.22 1.58 2.72 4.02 6.35 3.14 4.03 6.22 9.32

20 Hrs 0.42 0.76 1.52 2.09 2.9 6.42 7.26 17.3 19.4 0.64 0.82 1.45 2.12 3.34 1.67 2.17 3.31 5.21

Constant Current Discharge (amps) to 1.67Vpc at 20°C/68°F SBS8 SBS15 SBS30 SBS40 SBS60 SBS110 SBS130 SBS300 SBS390 SBS J13 SBS J16 SBS J30 SBS J40 SBS J70 B8 B10 B14 C11

5 Min 39.9 70.7 134 174 230 399 493 1,080 1,186 59.5 72.8 132 184 312 153 169 260 332

10 Min 24.4 43.6 82.1 111 146 276 329 788 849 37.1 46.2 85.0 120 205 92.3 106 179 230

15 Min 18.0 32.4 60.8 83.6 110 216 254 621 675 27.6 34.7 63.8 90.8 155 68.1 79.3 139 180

20 Min 14.3 26.1 48.8 67.8 89.6 180 209 522 565 22.3 28.1 51.5 73.7 126 54.7 63.8 114 148

25 Min 12.0 22.0 41.1 57.4 76.0 154 179 447 487 18.7 23.8 43.3 62.4 106 46.1 53.7 96.9 127

30 Min 10.3 19.1 35.6 50.0 66.2 136 158 392 432 16.2 20.7 37.5 54.2 91.9 40.0 46.5 84.6 111

35 Min 9.08 16.9 31.4 44.4 58.9 122 141 355 387 14.4 18.4 33.1 48.1 81.2 35.4 41.1 75.1 98.7

40 Min 8.13 15.2 28.2 39.9 53.1 111 128 318 354 12.9 16.5 29.7 43.2 72.8 31.9 36.9 37.7 89.1

45 Min 7.36 13.8 25.7 36.4 48.4 101 117 289 323 11.7 15.0 27.0 39.3 66.0 29.0 33.5 61.6 81.3

Constant Current Discharge (amps) to 1.65Vpc at 20°C/68°F SBS8 SBS15 SBS30 SBS40 SBS60 SBS110 SBS130 SBS300 SBS390 SBS J13 SBS J16 SBS J30 SBS J40 SBS J70 B8 B10 B14 C11

5 Min 40.5 71.6 136 177 235 410 506 1,105 1,223 60.6 74.3 135 188 320 155 173 267 340

10 Min 24.7 43.9 82.8 112 148 281 335 800 863 37.5 46.7 86.0 121 208 93.0 107 183 235

15 Min 18.1 32.6 61.2 84.2 111 219 257 633 684 27.9 35.0 64.3 91.7 157 68.7 79.7 141 182

20 Min 14.4 26.2 49.1 68.2 90.4 181 212 532 571 22.4 28.3 51.8 74.4 127 55.2 64.1 115 151

25 Min 12.1 22.1 41.3 57.7 76.6 156 181 449 492 18.9 23.9 43.6 62.9 107 46.5 53.9 97.9 128

30 Min 10.4 19.1 35.7 50.2 66.7 137 159 395 434 16.3 20.8 37.7 54.6 92.6 40.3 46.6 85.3 111

35 Min 9.15 16.9 31.6 44.5 59.3 123 142 354 390 14.4 18.5 33.3 48.4 81.8 35.7 41.2 75.7 99.6

40 Min 8.18 15.2 28.4 40.1 53.4 111 129 318 354 13.0 16.6 29.9 43.5 73.3 32.1 37.0 68.2 89.9

45 Min 7.41 13.8 25.8 36.5 48.7 102 118 290 325 11.8 15.1 27.1 39.5 66.5 29.2 33.6 62.0 81.9

Note: SBSB10 discharge rates are preliminary data and subject to revision.

10

www.enersysinc.com

Publication No: EN-SBS-PG-001 February 2003

Constant Current Discharge (amps) to 1.63Vpc at 20°C/68°F SBS8 SBS15 SBS30 SBS40 SBS60 SBS110 SBS130 SBS300 SBS390 SBS J13 SBS J16 SBS J30 SBS J40 SBS J70 B8 B10 B14 C11

5 Min 41.0 72.4 138 180 240 421 518 1,123 1,260 61.6 75.6 137 191 327 155 175 274 348

10 Min 24.9 44.2 83.5 113 150 285 340 800 879 37.9 47.2 86.9 123 211 93.7 108 186 239

15 Min 18.3 32.7 61.6 84.7 113 222 260 640 692 28.1 35.3 64.8 92.6 159 69.2 80.1 143 185

20 Min 14.6 26.3 49.4 68.6 91.1 183 214 539 576 22.5 28.5 52.2 74.9 128 55.6 64.3 116 152

25 Min 12.9 22.1 41.5 58.0 77.1 157 183 450 497 19.0 24.1 43.8 63.3 108 46.8 54.1 98.8 129

30 Min 10.5 19.2 35.9 50.4 67.1 138 160 396 439 16.4 20.9 37.9 54.9 93.3 40.6 46.8 86.0 113

35 Min 9.21 17.0 31.7 44.7 59.6 124 143 354 394 14.5 18.5 33.5 48.6 82.3 35.9 41.4 76.3 100

40 Min 8.23 15.3 28.5 40.3 53.7 112 130 318 356 13.0 16.7 30.0 43.7 73.7 32.3 37.1 68.6 90.5

45 Min 7.46 13.9 25.9 36.6 49.0 103 119 290 327 11.8 15.2 27.2 39.7 66.8 29.4 33.7 62.4 82.5

1 Hr 5.84 11.0 20.4 29.0 38.9 82.5 95.2 227 265 9.34 12.0 21.3 31.3 52.3 23.3 26.6 49.2 65.4

2 Hrs 3.20 6.13 11.3 16.2 21.9 47.5 54.8 130 153 5.19 6.72 11.7 17.3 28.3 13.0 14.8 27.0 36.5

3 Hrs 2.24 4.32 7.95 11.4 15.5 33.9 39.1 90.2 109 3.64 4.73 8.14 12.1 19.6 9.19 10.4 18.8 25.7

4 Hrs 1.74 3.35 6.16 8.82 12.1 26.6 30.7 69.1 84.7 2.82 3.67 6.28 9.34 15.0 7.12 8.08 14.5 20.0

5 Hrs 1.43 2.75 5.04 7.21 9.89 21.9 25.3 59.0 69.7 2.31 3.00 5.13 7.63 12.2 5.82 6.64 11.8 16.5

6 Hrs 1.21 2.33 4.28 6.10 8.40 18.72 21.6 49.8 59.1 1.96 2.54 4.34 6.46 10.3 4.93 5.64 9.97 14.1

7 Hrs 1.06 2.03 3.72 5.29 7.31 16.37 18.8 43.4 51.4 1.70 2.21 3.77 5.61 8.91 4.28 4.92 8.65 12.3

8 Hrs 0.94 1.80 3.29 4.77 6.47 14.55 16.7 38.3 45.6 1.51 1.96 3.34 4.96 7.86 3.89 4.50 7.65 11.3

9 Hrs 0.85 1.61 2.95 4.18 5.81 13.12 15.1 35.0 41.0 1.35 1.75 3.00 4.45 7.04 3.48 4.25 6.87 10.2

10 Hrs 0.77 1.46 2.73 3.91 5.27 11.95 13.7 31.8 37.3 1.23 1.59 2.73 4.04 6.38 3.15 4.06 6.23 9.34

20 Hrs 0.42 0.76 1.53 2.11 2.87 6.44 7.29 17.3 19.4 0.64 0.83 1.46 2.13 3.35 1.68 2.17 3.32 5.23

1 Hr 5.89 11.0 20.5 29.2 39.1 83.0 95.9 230 267 9.38 12.1 21.4 31.5 52.6 23.5 26.7 49.5 65.8

2 Hrs 3.23 6.16 11.4 16.3 22.1 47.7 55.1 131 154 5.21 6.75 11.7 17.4 28.5 13.1 14.9 27.1 36.7

3 Hrs 2.26 4.34 7.99 11.5 15.6 34.1 39.4 90.5 110 3.66 4.76 8.18 12.2 19.7 9.23 10.5 18.8 25.8

4 Hrs 1.75 3.37 6.19 8.87 12.1 26.7 30.8 70.5 85.7 2.84 3.69 6.31 9.40 15.1 7.15 8.18 14.5 20.1

5 Hrs 1.44 2.76 5.07 7.25 9.94 22.1 25.4 59.4 70.5 2.32 3.02 5.16 7.68 12.3 5.85 6.72 11.8 16.5

6 Hrs 1.22 2.35 4.30 6.13 8.44 18.8 21.7 50.1 59.6 1.97 2.56 4.37 6.50 10.3 4.95 5.71 10.0 14.1

7 Hrs 1.07 2.04 3.74 5.32 7.34 16.5 19.0 43.4 52.0 1.71 2.23 3.80 5.65 8.96 4.29 4.98 8.68 12.4

8 Hrs 0.95 1.80 3.30 4.80 6.50 14.6 16.8 38.3 46.1 1.52 1.97 3.36 5.00 7.91 3.90 4.56 7.68 11.3

9 Hrs 0.86 1.62 2.96 4.20 5.83 13.2 15.2 35.1 41.3 1.36 1.77 3.02 4.48 7.08 3.49 4.30 6.89 10.3

10 Hrs 0.78 1.47 2.74 3.93 5.29 12.0 13.8 31.9 37.5 1.23 1.60 2.74 4.07 6.42 3.16 4.10 6.25 9.36

20 Hrs 0.43 0.77 1.53 2.1 2.88 6.46 7.32 17.3 19.4 0.64 0.84 1.46 2.14 3.37 1.69 2.19 3.33 5.26

1 Hr 6.07 11.1 20.6 29.3 39.5 83.8 97.0 231 271 9.45 12.0 21.5 31.6 52.8 23.9 27.2 49.9 66.6

2 Hrs 3.33 6.22 11.5 16.5 22.3 48.2 55.7 132 157 5.28 6.77 11.8 17.6 28.8 13.3 15.4 27.3 36.9

3 Hrs 2.33 4.39 8.09 11.6 15.7 34.4 39.8 91.0 113 3.72 4.79 8.27 12.3 20.0 9.39 10.9 19.0 26.0

4 Hrs 1.81 3.41 6.27 8.99 12.2 27.0 31.2 70.8 88.1 2.88 3.73 6.40 9.55 15.3 7.27 8.50 14.7 20.2

5 Hrs 1.49 2.80 5.14 7.34 10.0 22.3 25.8 59.8 72.4 2.36 3.06 5.23 7.82 12.5 5.94 6.99 12.0 16.6

6 Hrs 1.26 2.37 4.36 6.20 8.53 19.1 22.0 50.3 61.5 2.00 2.60 4.44 6.63 10.5 5.02 5.94 10.14 14.2

7 Hrs 1.10 2.06 3.78 5.37 7.42 16.7 19.2 43.5 53.5 1.74 2.27 3.86 5.77 9.14 4.35 5.18 8.80 12.4

8 Hrs 0.98 1.83 3.35 4.84 6.56 14.8 17.1 38.3 47.3 1.54 2.01 3.42 5.10 8.06 3.95 4.73 7.79 11.4

9 Hrs 0.88 1.64 3.00 4.23 5.89 13.4 15.4 35.1 42.3 1.38 1.80 3.07 4.58 7.22 3.54 4.47 6.99 10.3

10 Hrs 0.80 1.48 2.78 3.95 5.34 12.2 14.0 31.9 38.3 1.25 1.64 2.78 4.16 6.54 3.19 4.25 6.35 9.43

20 Hrs 0.44 0.77 1.55 2.14 2.89 6.50 7.38 17.4 19.4 0.65 0.85 1.47 2.18 3.40 1.69 2.22 3.37 5.30

Constant Current Discharge (amps) to 1.60Vpc at 20°C/68°F SBS8 SBS15 SBS30 SBS40 SBS60 SBS110 SBS130 SBS300 SBS390 SBS J13 SBS J16 SBS J30 SBS J40 SBS J70 B8 B10 B14 C11

5 Min 41.8 73.5 140 184 246 435 536 1,148 1,315 63.0 77.4 140 197 337 156 179 283 360

10 Min 25.3 44.6 84.3 114 153 291 347 806 899 38.4 47.9 88.0 125 215 94.6 109 190 245

15 Min 18.5 33.0 62.0 85.4 114 225 265 650 703 28.3 35.6 65.4 93.6 161 69.8 80.6 145 188

20 Min 14.7 26.5 49.7 69.0 92.1 186 217 547 584 22.7 28.7 52.5 75.6 130 56.1 64.6 118 154

25 Min 12.3 22.2 41.7 58.3 77.8 159 185 453 503 19.1 24.2 44.1 63.8 109 47.2 54.3 100 131

30 Min 10.6 19.3 36.0 50.6 67.7 139 162 397 443 16.5 21.0 38.1 55.3 94.0 40.9 47.0 86.9 114

35 Min 9.30 17.1 31.8 44.9 60.0 125 145 351 396 14.6 18.6 33.6 48.9 82.9 36.3 41.5 77.0 102

40 Min 8.31 15.3 28.6 40.6 54.1 113 131 320 360 13.1 16.7 30.1 43.9 74.2 32.6 37.3 69.2 91.4

45 Min 7.53 13.9 26.0 36.8 49.3 103 120 290 329 11.9 15.2 27.3 39.9 67.2 29.6 33.9 62.8 83.2

Constant Current Discharge (amps) to 1.50Vpc at 20°C/68°F SBS8 SBS15 SBS30 SBS40 SBS60 SBS110 SBS130 SBS300 SBS390 SBS J13 SBS J16 SBS J30 SBS J40 SBS J70 B8 B10 B14 C11

5 Min 43.5 75.3 144 191 256 470 581 1,201 1,478 65.8 81.2 148 209 359 161 184 308 391

10 Min 26.1 45.2 85.4 116 157 304 364 818 949 39.1 48.8 89.7 128 221 96.4 109 198 258

15 Min 19.1 33.3 62.5 86.0 116 232 273 648 725 28.6 35.9 66.0 94.9 163 71.1 80.9 149 196

20 Min 15.2 26.7 49.9 69.3 93.6 190 222 547 595 22.9 28.8 52.8 76.2 131 57.0 64.9 121 158

25 Min 12.7 22.4 41.9 58.5 78.9 162 189 452 510 19.2 24.2 44.2 64.1 109 48.0 54.6 102 134

30 Min 10.9 19.4 36.2 50.8 68.6 142 165 397 448 16.6 21.0 38.2 55.5 94.3 41.6 47.3 88.1 117

35 Min 9.58 17.2 32.0 45.1 60.8 126 147 352 402 14.7 18.6 33.7 49.1 83.1 36.9 41.9 77.9 103

40 Min 8.57 15.4 28.7 40.6 54.7 114 133 317 365 13.2 16.7 30.2 44.1 74.4 33.1 37.7 69.9 92.9

45 Min 7.76 14.1 26.1 37.0 49.8 104 121 290 336 12.0 15.2 27.3 40.0 67.4 30.1 34.3 63.4 84.4

Note: SBSB10 discharge rates are preliminary data and subject to revision.

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Publication No: EN-SBS-PG-001 February 2003

11

Performance Data Constant power discharge performance data

Constant Power Discharge (watts per cell) to 1.85Vpc at 20°C/68°F SBS8 SBS15 SBS30 SBS40 SBS60 SBS110 SBS130 SBS300 SBS390 SBS J13 SBS J16 SBS J30 SBS J40 SBS J70 B8 B10 B14 C11

5 Min 63.3 112 208 262 326 532 693 1,169 1,574 94.3 111 200 270 442 275 242 363 466

10 Min 45.7 75.2 140 184 235 402 509 1,053 1,267 64.1 75.8 140 193 317 161 177 273 352

15 Min 38.8 58.0 108 145 187 329 411 901 1,064 49.2 58.9 110 152 250 118 140 222 286

20 Min 29.4 47.6 88.4 121 156 281 349 793 923 40.2 48.7 90.4 127 208 96.0 116 188 244

25 Min 25.0 40.7 74.6 104 134 247 304 701 822 34.1 41.7 77.3 109 179 81.4 99.6 164 213

30 Min 21.7 35.6 65.2 91.2 118 221 271 630 735 29.7 36.6 67.7 96.1 157 71.0 87.1 146 189

35 Min 19.2 31.7 58.1 81.6 106 200 245 565 671 26.3 32.7 60.3 86.0 141 63.4 77.6 131 172

40 Min 17.2 28.7 52.4 73.9 96.3 184 224 516 617 23.6 29.6 54.4 78.0 127 57.4 69.9 120 157

45 Min 15.5 26.2 47.9 67.6 88.4 170 207 456 569 21.4 27.0 49.6 71.4 116 52.5 63.7 110 144

1 Hr 12.1 20.9 38.1 54.1 71.3 139 169 381 468 16.9 21.6 39.4 57.1 92.5 42.2 50.4 89.2 117

2 Hrs 6.33 11.8 21.5 30.6 41.1 83.8 101 206 277 9.19 12.2 21.9 32.4 51.4 24.6 27.8 51.5 69.2

3 Hrs 4.27 8.32 15.1 21.6 29.2 61.1 72.9 148 201 6.36 8.64 15.3 22.8 35.7 17.6 19.4 36.5 46.8

4 Hrs 3.22 6.47 11.8 16.7 22.8 48.5 57.5 119 158 4.88 6.71 11.8 17.7 27.4 13.8 15.0 28.4 39.1

5 Hrs 2.59 5.31 9.62 13.7 18.8 40.4 47.6 101 130 3.96 5.50 9.68 14.5 22.2 11.3 12.2 23.3 32.4

6 Hrs 2.17 4.51 8.17 11.6 16.0 34.7 40.7 87.3 113 3.34 4.67 8.20 12.3 18.7 9.60 10.4 19.8 27.7

7 Hrs 1.86 3.92 7.10 10.1 13.9 30.5 35.7 77.9 98.2 2.89 4.06 7.12 10.7 16.1 8.30 9.08 17.2 24.2

8 Hrs 1.64 3.48 6.29 9.11 12.3 27.3 31.7 70.4 87.4 2.55 3.60 6.30 9.43 14.1 7.55 8.32 15.2 22.2

9 Hrs 1.46 3.12 5.64 8.00 11.1 24.7 28.6 64.9 78.8 2.28 3.23 5.66 8.47 12.6 6.74 7.88 13.6 20.0

10 Hrs 1.32 2.84 5.23 7.49 10.1 22.6 26.1 59.9 71.5 2.07 2.93 5.14 7.68 11.4 6.08 7.54 12.4 18.3

20 Hrs 0.69 1.51 2.87 4.10 5.40 12.5 14.0 33.2 38.4 1.09 1.54 2.75 4.05 5.74 3.09 4.23 6.47 9.92

2 Hrs 6.39 11.9 21.7 31.1 41.7 86.3 103 235 284 9.45 12.5 22.3 32.8 52.2 24.9 28.1 52.0 70.0

3 Hrs 4.33 8.39 15.3 21.9 29.7 62.7 74.1 165 204 6.56 8.83 15.6 23.1 36.2 17.8 19.6 36.7 50.2

4 Hrs 3.27 6.53 11.9 17.0 23.2 49.6 58.4 129 160 5.04 6.87 12.0 17.9 27.7 13.9 15.2 28.5 39.4

5 Hrs 2.63 5.36 9.74 13.9 19.0 41.3 48.4 109 132 4.10 5.63 9.82 14.7 22.5 11.4 12.5 23.4 32.6

6 Hrs 2.20 4.55 8.27 11.8 16.2 35.4 41.4 92.7 114 3.46 4.78 8.32 12.4 18.9 9.66 10.6 19.8 27.9

7 Hrs 1.89 3.96 7.19 10.2 14.1 31.1 36.2 81.9 99.3 3.00 4.16 7.23 10.8 16.3 8.38 9.26 17.2 24.4

8 Hrs 1.67 3.51 6.36 9.25 12.5 27.8 32.2 73.3 88.3 2.65 3.68 6.40 9.56 14.3 7.62 8.48 15.2 22.4

9 Hrs 1.49 3.16 5.71 8.12 11.3 25.1 29.0 66.7 79.5 2.37 3.31 5.75 8.58 12.8 6.80 8.03 13.7 20.2

10 Hrs 1.34 2.87 5.29 7.60 10.2 23.0 26.4 61.2 72.2 2.15 3.00 5.23 7.79 11.5 6.14 7.68 12.4 18.4

20 Hrs 0.70 1.51 2.92 4.13 5.45 12.6 14.1 33.2 38.6 1.12 1.58 2.80 4.11 5.86 3.18 4.26 6.54 10.1

2 Hrs 6.46 12.0 22.0 31.4 42.2 88.6 104 238 289 9.67 12.7 22.6 33.3 53.0 25.2 28.4 52.4 70.7

3 Hrs 4.38 8.46 15.5 22.2 30.1 64.2 75.3 168 207 6.74 9.01 15.8 23.4 36.6 17.9 19.9 36.9 50.5

4 Hrs 3.32 6.58 12.0 17.2 23.5 50.7 59.3 131 162 5.19 7.01 12.2 18.1 28.0 14.0 15.8 28.6 39.6

5 Hrs 2.67 5.41 9.85 14.1 19.3 42.1 49.1 110 134 4.23 5.75 10.0 14.8 22.7 11.5 12.7 23.4 32.8

6 Hrs 2.24 4.60 8.36 11.9 16.4 36.1 41.9 93.9 113 3.57 4.88 8.44 12.6 19.1 9.72 10.8 19.9 28.0

7 Hrs 1.93 4.00 7.27 10.4 14.3 31.7 36.7 82.8 101 3.09 4.25 7.33 10.9 16.5 8.44 9.43 17.3 24.6

8 Hrs 1.70 3.55 6.44 9.36 12.7 28.3 32.6 74.0 89.5 2.73 3.76 6.49 9.67 14.5 7.67 8.64 15.3 22.5

9 Hrs 1.52 3.19 5.78 8.22 11.4 25.5 29.4 67.2 80.6 2.45 3.38 5.84 8.68 12.9 6.87 8.18 13.7 20.4

10 Hrs 1.37 2.89 5.35 7.69 10.4 23.3 26.8 61.6 73.1 2.21 3.07 5.30 7.88 11.7 6.20 7.81 12.5 18.6

20 Hrs 0.72 1.52 2.95 4.16 5.68 12.7 14.3 33.3 39.0 1.15 1.61 2.84 4.17 5.97 3.24 4.29 6.60 10.3

Constant Power Discharge (watts per cell) to 1.80Vpc at 20°C/68°F SBS8 SBS15 SBS30 SBS40 SBS60 SBS110 SBS130 SBS300 SBS390 SBS J13 SBS J16 SBS J30 SBS J40 SBS J70 B8 B10 B14 C11

5 Min 66.3 117 219 277 353 582 745 1,480 1,699 98.3 117 213 289 477 276 263 392 502

10 Min 46.9 77.1 143 191 244 432 537 1,240 1,335 65.6 78.9 146 202 336 164 184 290 373

15 Min 36.4 58.9 109 149 193 350 430 1,037 1,108 50.1 60.9 113 158 263 122 143 233 300

20 Min 29.8 48.2 90.2 123 161 297 362 870 956 40.8 50.1 93.1 131 217 96 117 196 253

25 Min 25.3 41.1 75.9 106 137 259 315 752 850 34.6 42.8 79.3 112 186 83.6 101 170 221

30 Min 21.9 35.9 66.3 92.8 121 231 280 664 754 30.1 37.5 69.3 98.8 163 72.9 87.8 151 196

35 Min 19.3 32.0 58.9 82.9 108 209 252 594 690 26.7 33.5 61.6 88.2 145 65.0 78.1 135 177

40 Min 17.3 28.9 53.2 75.0 98.2 192 231 541 635 24.0 30.3 55.6 79.8 131 58.8 70.4 123 161

45 Min 15.7 26.4 48.5 68.6 90.1 177 213 497 584 21.8 27.6 50.6 73.0 119 53.7 64.1 113 148

1 Hr 12.2 21.0 38.6 54.9 72.4 145 173 401 477 17.2 22.1 40.1 58.3 94.6 43.1 50.7 90.9 120

Constant Power Discharge (watts per cell) to 1.75Vpc at 20°C/68°F SBS8 SBS15 SBS30 SBS40 SBS60 SBS110 SBS130 SBS300 SBS390 SBS J13 SBS J16 SBS J30 SBS J40 SBS J70 B8 B10 B14 C11

5 Min 69.1 122 229 292 377 631 795 1,575 1,813 102 123 224 306 511 277 281 421 537

10 Min 47.8 78.8 147 197 255 460 562 1,247 1,399 67.04 81.65 152 211 353 168 189 306 392

15 Min 36.9 59.8 112 152 198 369 447 1,042 1,152 50.92 62.61 117 164 274 125 146 243 313

20 Min 30.1 48.8 90.8 126 163 311 374 877 989 41.44 51.34 95.49 135 225 101 119 204 263

25 Min 25.4 41.5 77.1 107 140 271 324 758 876 35.10 43.78 81.16 115 192 85.6 102 176 228

30 Min 22.0 36.2 67.2 94.2 123 241 288 671 776 30.5 38.3 70.8 101 168 75 88 155 202

35 Min 19.4 32.2 59.7 84.0 110 218 259 602 709 27.1 34.1 62.8 90.2 149 66.5 78.6 139 182

40 Min 17.4 29.1 53.8 76.0 100 199 236 547 651 24.4 30.9 56.6 81.5 134 60.1 70.8 126 165

45 Min 15.7 26.5 49.1 69.5 91.6 183 218 503 598 22.2 28.2 51.5 74.4 122 54.9 64.4 115 151

1 Hr 12.2 21.1 39.0 55.5 73.6 149 177 409 487 17.5 22.5 40.7 59.3 96.6 43.9 51.0 92.5 122.0

Note: SBSB10 discharge rates are preliminary data and subject to revision.

12

www.enersysinc.com

Publication No: EN-SBS-PG-001 February 2003

Constant Power Discharge (watts per cell) to 1.70Vpc at 20°C/68°F SBS8 SBS15 SBS30 SBS40 SBS60 SBS110 SBS130 SBS300 SBS390 SBS J13 SBS J16 SBS J30 SBS J40 SBS J70 B8 B10 B14 C11

5 Min 71.6 126 238 305 399 677 842 1,645 1,930 106 129 235 323 543 277 297 448 570

10 Min 48.5 80.3 151 202 264 485 586 1,314 1,455 68.4 84.1 157 219 369 170 195 320 411

15 Min 37.1 60.6 114 155 203 386 462 1,081 1,189 51.7 64.1 120 169 284 127 148 253 326

20 Min 30.2 49.3 92.2 128 167 324 386 914 1,014 42.0 52.4 97.5 138 232 103 121 210 273

25 Min 25.5 41.8 78.1 109 143 281 333 793 899 35.5 44.6 82.7 118 197 87.5 102 181 235

30 Min 22.1 36.5 68.0 95.4 126 249 295 698 793 30.9 39.0 72.0 103 172 76.2 89.1 159 207

35 Min 19.5 33.0 60.4 85.1 112 225 265 618 724 27.4 34.7 63.9 91.9 153 67.9 79.1 142 186

40 Min 17.4 29.3 54.4 76.9 102 205 242 562 663 24.7 31.4 57.4 82.9 137 61.3 71.2 129 169

45 Min 15.8 26.7 49.6 70.3 93.0 189 222 516 609 22.5 28.7 52.3 75.7 125 55.9 64.9 118 155

1 Hr 12.3 21.3 39.4 56.1 74.6 154 180 412 496 17.8 22.9 41.3 60.2 98.3 44.7 51.4 93.9 124

2 Hrs 6.53 12.0 22.2 31.8 42.8 90.6 106 245 294 9.87 13.0 22.8 33.7 53.6 25.5 28.7 52.8 71.3

3 Hrs 4.45 8.52 15.6 22.4 30.4 65.4 76.3 173 209 6.90 9.17 15.9 23.7 37.0 18.1 20.2 37.1 50.9

4 Hrs 3.38 6.64 12.1 17.4 23.7 51.6 60.0 134 164 5.32 7.13 12.3 18.3 28.3 14.1 15.7 28.7 39.8

5 Hrs 2.72 5.45 10.0 14.3 19.5 42.8 49.7 114 136 4.34 5.85 10.1 15.0 22.9 11.5 12.9 23.5 32.9

6 Hrs 2.29 4.63 8.45 12.1 16.6 36.7 42.4 94.8 117 3.67 4.97 8.54 12.7 19.3 9.78 11.0 19.9 28.2

7 Hrs 1.97 4.03 7.34 10.5 14.5 32.1 37.1 83.5 102 3.18 4.33 7.42 11.1 16.7 8.49 9.61 17.3 24.7

8 Hrs 1.73 3.57 6.50 9.46 12.8 28.7 33.0 74.3 90.3 2.81 3.83 6.58 9.78 14.7 7.72 8.80 15.3 22.7

9 Hrs 1.55 3.21 5.83 8.30 11.5 25.9 29.8 67.6 81.3 2.51 3.44 5.91 8.78 13.1 6.92 8.33 13.8 20.5

10 Hrs 1.40 2.92 5.40 7.76 10.5 23.6 27.1 61.8 74.0 2.27 3.13 5.37 7.97 11.8 6.25 7.94 12.5 18.7

20 Hrs 0.73 1.53 2.96 4.17 5.71 12.8 14.4 33.3 39.2 1.17 1.64 2.88 4.22 6.07 3.30 4.32 6.65 10.4

2 Hrs 6.57 12.1 22.3 31.9 43.0 91.9 107 248 294 10.0 13.1 23.0 33.9 54.0 25.6 28.9 53.0 71.6

3 Hrs 4.49 8.54 15.7 22.6 30.6 66.2 76.8 174 211 6.98 9.25 16.0 23.8 37.3 18.1 20.4 37.2 51.0

4 Hrs 3.41 6.65 12.2 17.5 23.9 52.2 60.4 135 166 5.39 7.20 12.4 18.4 28.5 14.1 15.9 28.8 39.9

5 Hrs 2.76 5.46 10.0 14.3 19.6 43.2 50.0 114 136 4.40 5.91 10.1 15.1 23.1 11.6 13.1 23.5 33.0

6 Hrs 2.32 4.65 8.49 12.1 16.7 37.0 42.7 95.6 117 3.72 5.02 8.59 12.8 19.4 9.81 11.1 20.0 28.2

7 Hrs 2.00 4.05 7.38 10.5 14.5 32.4 37.3 84.1 102 3.22 4.37 7.47 11.1 16.8 8.52 9.71 17.3 24.7

8 Hrs 1.76 3.58 6.53 9.50 12.9 28.9 33.2 74.8 90.8 2.84 3.87 6.62 9.85 14.7 7.74 8.88 15.4 22.7

9 Hrs 1.57 3.22 5.86 8.34 11.6 26.1 29.9 68.0 81.9 2.54 3.48 5.95 8.84 13.2 6.96 8.41 13.8 20.5

10 Hrs 1.42 2.92 5.43 7.79 10.5 23.8 27.2 62.3 74.3 2.30 3.16 5.41 8.02 11.9 6.27 8.01 12.5 18.8

20 Hrs 0.74 1.53 2.97 4.17 5.73 12.9 14.5 33.3 39.2 1.18 1.65 2.90 4.24 6.12 3.33 4.33 6.67 10.5

2 Hrs 6.59 12.1 22.3 32.1 43.2 92.3 107 252 296 10.0 13.1 23.0 34.0 54.2 25.7 29.1 53.2 71.9

3 Hrs 4.52 8.58 15.8 22.6 30.7 66.5 77.1 176 212 7.02 9.30 16.1 23.9 37.4 18.2 20.6 37.3 51.1

4 Hrs 3.44 6.68 12.3 17.6 24.0 52.4 60.7 137 166 5.43 7.24 12.4 18.5 28.6 14.2 16.0 28.8 40.0

5 Hrs 2.78 5.49 10.0 14.4 19.7 43.4 50.2 115 138 4.43 5.94 10.2 15.2 23.2 11.6 13.2 23.6 33.0

6 Hrs 2.34 4.66 8.52 12.2 16.8 37.2 42.9 95.9 118 3.75 5.05 8.63 12.8 19.5 9.84 11.2 20.0 28.3

7 Hrs 2.02 4.06 7.41 10.6 14.6 32.5 37.5 84.2 103 3.25 4.40 7.50 11.2 16.8 8.54 9.78 17.4 24.8

8 Hrs 1.78 3.60 6.55 9.54 12.9 29.0 33.3 74.8 91.2 2.87 3.89 6.65 9.88 14.8 7.77 8.95 15.4 22.8

9 Hrs 1.59 3.23 5.88 8.36 11.6 26.2 30.0 68.0 82.1 2.56 3.50 5.97 8.87 13.2 6.96 8.47 13.8 20.5

10 Hrs 1.44 2.93 5.45 7.82 10.5 23.9 27.3 62.3 74.6 2.32 3.17 5.43 8.06 12.0 6.29 8.07 12.5 18.8

20 Hrs 0.75 1.53 3.04 4.17 5.74 12.9 14.6 33.3 39.3 1.19 1.66 2.91 4.26 6.15 3.35 4.35 6.69 10.5

Constant Power Discharge (watts per cell) to 1.67Vpc at 20°C/68°F SBS8 SBS15 SBS30 SBS40 SBS60 SBS110 SBS130 SBS300 SBS390 SBS J13 SBS J16 SBS J30 SBS J40 SBS J70 B8 B10 B14 C11

5 Min 72.9 128 241 311 408 699 864 1,679 1,987 108 132 241 332 560 278 304 461 585

10 Min 48.8 80.9 152 205 268 498 597 1,325 1,481 69.2 85.4 159 223 377 171 196 327 420

15 Min 37.2 60.9 114 157 206 395 469 1,093 1,207 52.1 64.9 121 171 289 128 149 257 331

20 Min 30.2 49.5 92.7 128 169 331 391 930 1,027 42.3 53.0 98.6 140 236 104.0 121 214 276

25 Min 25.5 42.0 78.6 110 145 287 338 798 910 35.8 45.0 83.5 119 200 88.4 103 184 239

30 Min 22.1 36.6 68.3 95.9 127 255 298 705 801 31.1 39.4 72.6 104 174 77.0 89.4 161 209

35 Min 19.5 32.6 60.7 85.6 113 229 269 623 733 27.6 35.0 64.4 92.7 154 68.6 79.4 144 188

40 Min 17.4 29.4 54.7 77.4 102 209 244 566 670 24.9 31.6 57.9 83.7 139 61.9 71.5 130 171

45 Min 15.8 26.8 49.8 70.6 93.7 193 224 521 612 22.6 28.9 52.6 76.3 126 56.4 65.1 119 156

1 Hr 12.3 21.3 39.6 56.4 75.1 156 182 417 501 17.9 23.0 41.6 60.6 99.1 45.0 51.6 94.6 125

Constant Power Discharge (watts per cell) to 1.65Vpc at 20°C/68°F SBS8 SBS15 SBS30 SBS40 SBS60 SBS110 SBS130 SBS300 SBS390 SBS J13 SBS J16 SBS J30 SBS J40 SBS J70 B8 B10 B14 C11

5 Min 73.7 129 245 316 417 718 886 1,745 2,043 110 134 245 338 571 278 310 473 601

10 Min 48.9 81.5 154 207 272 507 607 1,344 1,509 69.7 86.1 161 225 382 173 199 333 428

15 Min 37.2 61.3 115 158 208 401 476 1,111 1,221 52.4 65.3 122 172 292 129 149 261 337

20 Min 30.2 49.8 93.3 129 170 336 395 946 1,036 42.5 53.3 99.2 141 238 105 122 216 280

25 Min 25.4 42.2 78.9 110 145 290 341 810 917 35.9 45.3 83.9 120 202 89.0 103 185 241

30 Min 22.0 36.7 68.7 96.4 127 257 301 709 808 31.2 39.6 73.0 104.8 175 77.6 89.7 162 212

35 Min 19.4 32.7 60.9 85.9 114 231 271 629 735 27.7 35.2 64.7 93.2 155 69.0 79.6 145 190

40 Min 17.4 29.5 54.9 77.6 103 211 246 567 672 24.9 31.8 58.1 84.1 139 62.3 71.7 131 172

45 Min 15.8 26.9 50.0 70.9 94.2 194 226 523 617 22.7 29.0 52.9 76.6 127 56.8 65.3 120 157

1 Hr 12.3 21.4 39.7 56.6 75.5 157 183 419 502 18.0 23.1 41.7 60.9 99.6 45.3 51.8 95.1 126

Note: SBSB10 discharge rates are preliminary data and subject to revision.

www.enersysinc.com

Publication No: EN-SBS-PG-001 February 2003

13

Constant Power Discharge (watts per cell) to 1.63Vpc at 20°C/68°F SBS8 SBS15 SBS30 SBS40 SBS60 SBS110 SBS130 SBS300 SBS390 SBS J13 SBS J16 SBS J30 SBS J40 SBS J70 B8 B10 B14 C11

5 Min 74.8 130 246 318 420 728 894 1,753 2,065 111 135 248 343 581 279 313 478 607

10 Min 49.0 81.7 154 207 273 514 612 1,352 1,568 70.1 86.8 162 227 387 173 199 336 432

15 Min 37.2 61.4 115 158 209 406 479 1,116 1,227 52.6 65.7 123 174 295 129 150 263 339

20 Min 30.1 49.8 93.5 130 171 340 398 951 1,040 42.6 53.5 99.7 142 240 105 122 218 282

25 Min 25.4 42.3 79.2 111 146 293 344 817 922 36.1 45.5 84.3 121 203 90 103 187 243

30 Min 22.0 36.8 68.8 96.7 128 260 303 714 810 31.4 39.7 73.3 105 176 77.9 89.8 163 213

35 Min 19.4 32.7 61.1 86.2 114 233 272 634 740 27.8 35.4 64.9 93.6 156 69.4 79.8 146 191

40 Min 17.4 29.5 55.1 77.9 103 213 247 572 675 25.0 31.9 58.3 84.4 140 62.6 71.9 132 173

45 Min 15.8 26.9 50.1 71.1 94.6 196 227 527 620 22.8 29.1 53.0 77.0 127 57.1 65.4 120 158

1 Hr 12.3 21.4 39.8 56.8 75.8 159 184 424 505 18.1 23.2 41.8 61.1 100 45.5 51.9 95.5 126

2 Hrs 6.62 12.1 22.4 32.1 43.3 93.2 108 254 298 10.1 13.2 23.1 34.2 54.4 25.8 29.2 53.3 72.0

3 Hrs 4.55 8.58 15.8 22.7 30.8 67.0 77.4 177 213 7.07 9.34 16.2 24.0 37.6 18.2 20.7 37.3 51.2

4 Hrs 3.47 6.68 12.3 17.6 24.0 52.7 60.8 137 168 5.46 7.27 12.5 18.6 28.7 14.2 16.1 28.9 40.0

5 Hrs 2.81 5.49 10.1 14.4 19.7 43.7 50.3 115 138 4.46 5.97 10.2 15.2 23.3 11.6 13.2 23.6 33.0

6 Hrs 2.36 4.68 8.55 12.2 16.8 37.3 43.0 96.0 119 3.77 5.08 8.66 12.9 19.6 9.89 11.4 20.0 28.3

7 Hrs 2.04 4.07 7.43 10.6 14.6 32.7 37.6 84.4 103.5 3.27 4.42 7.53 11.2 16.9 8.58 9.94 17.4 24.8

8 Hrs 1.80 3.60 6.57 9.54 12.9 29.1 33.4 74.9 91.5 2.88 3.91 6.67 9.92 14.9 7.78 8.99 15.4 22.8

9 Hrs 1.61 3.24 5.90 8.38 11.6 26.2 30.1 68.2 82.5 2.58 3.51 5.99 8.91 13.3 6.97 8.52 13.8 20.6

10 Hrs 1.45 2.93 5.45 7.82 10.6 23.9 27.4 62.3 74.8 2.34 3.19 5.45 8.09 12.0 6.30 8.10 12.5 18.8

20 Hrs 0.76 1.54 3.04 4.21 5.74 12.9 14.6 33.3 39.3 1.20 1.67 2.91 4.27 6.17 3.36 4.35 6.69 10.5

2 Hrs 6.66 12.2 22.5 32.3 43.5 93.7 108 255 299 10.1 13.3 23.2 34.3 54.7 25.9 29.5 53.5 72.3

3 Hrs 4.59 8.62 15.9 22.8 30.9 67.4 77.8 177 215 7.12 9.39 16.2 24.1 37.8 18.3 20.9 37.5 51.3

4 Hrs 3.51 6.72 12.3 17.7 24.1 53.0 61.2 138 169 5.51 7.32 12.6 18.7 28.9 14.2 16.3 28.9 40.1

5 Hrs 2.85 5.52 10.1 14.5 19.8 43.9 50.6 115 139 4.50 6.01 10.3 15.3 23.4 11.7 13.4 23.7 33.1

6 Hrs 2.40 4.69 8.58 12.3 16.9 37.5 43.2 96.4 119 3.80 5.11 8.70 13.0 19.7 9.89 11.4 20.0 28.3

7 Hrs 2.07 4.08 7.46 10.6 14.7 32.8 37.8 84.6 104 3.30 4.45 7.57 11.3 17.0 8.58 9.94 17.4 24.8

8 Hrs 1.83 3.62 6.60 9.59 13.0 29.2 33.6 75.1 92.2 2.91 3.94 6.70 10.0 15.0 7.81 9.10 15.4 22.8

9 Hrs 1.63 3.25 5.92 8.40 11.7 26.4 30.2 68.4 82.9 2.60 3.54 6.02 8.96 13.4 6.96 8.60 13.9 20.6

10 Hrs 1.48 2.95 5.48 7.85 10.6 24.0 27.5 62.4 75.3 2.36 3.21 5.47 8.13 12.1 6.32 8.19 12.6 18.9

20 Hrs 0.97 1.54 3.04 4.25 5.75 12.9 14.6 33.3 39.4 1.20 1.68 2.92 4.29 6.20 3.38 4.37 6.72 10.6

2 Hrs 6.81 12.3 22.7 32.6 43.9 95.0 109 257 306 10.3 13.3 23.4 34.6 55.4 26.3 30.3 54.0 72.7

3 Hrs 4.77 8.69 16.0 23.0 31.2 68.3 78.6 178 219 7.21 9.48 16.4 24.4 38.3 18.6 21.5 37.8 51.5

4 Hrs 3.68 6.76 12.5 17.8 24.3 53.7 61.8 138 172 5.58 7.39 12.7 18.9 29.4 14.4 16.8 29.2 40.2

5 Hrs 3.00 5.55 10.2 14.6 19.9 44.4 51.1 116 142 4.56 6.08 10.4 15.5 23.8 11.8 13.8 23.9 33.2

6 Hrs 2.54 4.71 8.67 12.3 16.9 37.9 43.6 97.4 122 3.86 5.17 8.80 13.2 20.1 9.89 11.4 20.22 28.3

7 Hrs 2.20 4.10 7.53 10.7 14.7 33.2 38.1 85.2 107 3.34 4.50 7.65 11.5 17.3 8.58 9.94 17.56 24.8

8 Hrs 1.94 3.63 6.66 9.60 13.0 29.5 33.9 75.2 93.9 2.95 3.99 6.77 10.1 15.2 7.86 9.37 15.5 22.8

9 Hrs 1.74 3.26 5.97 8.40 11.7 26.6 30.5 68.6 84.2 2.64 3.58 6.08 9.10 13.6 7.04 8.85 14.0 20.6

10 Hrs 1.57 2.96 5.52 7.84 10.6 24.2 27.7 62.8 76.3 2.38 3.25 5.52 8.26 12.3 6.36 8.42 12.7 18.9

20 Hrs 0.81 1.53 3.07 4.26 5.74 13.0 14.7 33.4 39.4 1.21 1.69 2.92 4.33 6.25 3.37 4.41 6.74 10.6

Constant Power Discharge (watts per cell) to 1.60Vpc at 20°C/68°F SBS8 SBS15 SBS30 SBS40 SBS60 SBS110 SBS130 SBS300 SBS390 SBS J13 SBS J16 SBS J30 SBS J40 SBS J70 B8 B10 B14 C11

5 Min 75.4 132 250 325 431 753 924 1,790 2,148 113 138 252 350 595 280 319 495 627

10 Min 49.5 82.4 156 210 278 525 625 1,370 1,550 70.7 87.6 164 230 393 175 201 344 442

15 Min 37.4 61.8 116 160 211 413 487 1,129 1,245 53.0 66.2 124 175 298 131 151 268 346

20 Min 30.0 50.1 94.0 130 173 344 403 953 1,053 42.9 53.9 100 143 242 106 122 221 286

25 Min 25.3 42.4 79.5 111 147 297 347 821 930 36.2 45.7 84.8 121 205 90 104 189 246

30 Min 22.1 37.0 69.1 97.1 129 263 306 717 817 31.5 39.9 73.6 106 178 79 90 165 215

35 Min 19.3 32.8 61.3 86.5 115 236 275 647 746 27.9 35.5 65.2 94.1 157 69.9 80.1 147 193

40 Min 17.3 29.6 55.3 78.2 104 215 249 580 679 25.2 32.1 58.6 84.9 141 63.1 72.2 133 175

45 Min 15.7 27.0 50.3 71.4 95.2 198 229 527 622 22.9 29.3 53.3 77.3 128 57.5 65.8 121 159

1 Hr 12.5 21.5 40.0 57.0 76.2 160 185 426 507 18.2 23.3 42.0 61.4 101 45.8 52.2 96.1 127

Constant Power Discharge (watts per cell) to 1.50Vpc at 20°C/68°F SBS8 SBS15 SBS30 SBS40 SBS60 SBS110 SBS130 SBS300 SBS390 SBS J13 SBS J16 SBS J30 SBS J40 SBS J70 B8 B10 B14 C11

5 Min 77.3 133 254 332 440 795 975 1,846 2,324 117 141 261 365 624 284 322 524 665

10 Min 50.3 82.9 156 212 283 544 646 1,392 1,601 71.9 88.5 166 234 401 177 201 355 460

15 Min 38.0 62.2 117 161 215 426 499 1,129 1,266 53.5 66.5 125 177 301 132 151 274 357

20 Min 29.2 50.4 94.3 131 176 353 412 956 1,063 43.2 54.1 101 144 244 108 122 225 294

25 Min 24.6 42.7 79.7 112 150 304 354 826 937 36.5 45.9 85.0 122 206 90.2 104 192 246

30 Min 22.5 37.2 69.4 97.7 131 269 311 721 820 31.7 40.0 73.8 106 179 79.7 90.9 167 220

35 Min 18.9 33.1 61.6 87.0 117 241 279 651 749 28.1 35.6 65.4 94.4 158 69.9 80.1 149 193

40 Min 17.0 29.8 55.5 78.7 106 219 253 583 683 25.3 32.2 58.7 85.1 142 63.1 72.2 134 175

45 Min 15.5 27.2 50.6 71.9 96.5 201 232 532 626 23.1 29.4 53.4 77.6 129 58.4 66.7 122 162

1 Hr 12.7 21.7 40.2 57.4 77.1 163 188 428 512 18.3 23.4 42.2 61.6 101 46.5 53.2 97.0 129

Note: SBSB10 discharge rates are preliminary data and subject to revision.

14

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Publication No: EN-SBS-PG-001 February 2003

Performance Information

Temperature Correction

Short Circuit Currents

The following table shows the effect of battery temperature

Short Circuit Current and Internal Resistance – BS 6290

on the electrical discharge performance at different

Method

discharge rates. Performance is given as a factor of the performance at +20°C/68°F.

Model Rate

Temperature1 0°C 5°C 10°C 15°C 20°C 25°C 30°C 35°C 40°C 32°F 41°F 50°F 59°F 68°F 77°F 86°F 95°F 104°F REPV 2

5 m 0.688 0.763 0.840 0.919

1

Internal Resistance (mΩ)

Short Circuit Current (Amps)

SBS8

27.1

455

SBS15

13.5

891

1.082 1.164 1.247 1.330 1.63Vpc

SBS30

7.9

1,556

SBS40

5.6

2,184

10 m 0.726 0.795 0.864 0.933

1

1.066 1.129 1.191 1.249 1.65Vpc

15 m 0.746 0.812 0.877 0.940

1

1.057 1.112 1.163 1.210 1.65Vpc

SBS60

4.4

2,618

1.7

3,804

20 m 0.760 0.824 0.886 0.944

1

1.052 1.100 1.145 1.185 1.67Vpc

SBS110

25 m 0.771 0.833 0.892 0.948

1

1.048 1.092 1.132 1.167 1.67Vpc

SBS130

1.4

4,111

SBS300

0.23

8,700

30 m 0.779 0.840 0.897 0.950

1

1.045 1.086 1.122 1.154 1.70Vpc

35 m 0.786 0.845 0.901 0.953

1

1.043 1.081 1.115 1.143 1.70Vpc

SBS390

0.18

11,101

13

957

40 m 0.792 0.850 0.904 0.954

1

1.041 1.077 1.108 1.135 1.70Vpc

SBS J13

45 m 0.797 0.854 0.907 0.956

1

1.039 1.074 1.103 1.127 1.70Vpc

SBS J16

11

1,111

7

1,766

60 m 0.809 0.863 0.914 0.959

1

1.035 1.066 1.091 1.111 1.75Vpc

SBS J30

2 hrs 0.834 0.884 0.928 0.967

1

1.028 1.050 1.068 1.080 1.80Vpc

SBS J40

5.2

2,400

SBS J70

3.5

3,500

3 hrs 0.847 0.893 0.934 0.970

1

1.024 1.044 1.058 1.067 1.80Vpc

4 hrs 0.855 0.900 0.939 0.972

1

1.023 1.040 1.052 1.060 1.80Vpc

SBSB8

7.7

1,584

SBSB10

6.2

1,968

5 hrs 0.861 0.904 0.941 0.973

1

1.021 1.037 1.049 1.056 1.80Vpc

8 hrs 0.871 0.911 0.946 0.975

1

1.019 1.034 1.044 1.050 1.80Vpc

SBSB14

3.8

3,210

1.019 1.033 1.043 1.049 1.80Vpc

SBSC11

3.3

3,696

10 hrs 0.875 0.914 0.948 0.976

1

1

Figures apply to all products

2

REPV = Recommended End Point Voltage (the on-load voltage at which it is recommended to disconnect the battery from any load)

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Publication No: EN-SBS-PG-001 February 2003

15

Performance Information

End of Discharge Voltage The voltage point to which a battery can be discharged is a function of the discharge rate. The recommended end voltage point (REVP) is the voltage at which a battery should be disconnected from the load.

Batteries should be stored in a cool, dry area. High temperature increases the rate of self-discharge and reduces storage life. Figure 2 shows the relationship between open-circuit voltage and storage time at five temperatures.

Discharging the battery below the REVP or leaving the battery connected to a load in a discharged state will

2.17

100

“overdischarge” the battery and may impair its ability to

2.16

96

accept charge. In “overdischarge” conditions the sulphuric

2.15

91 87

conductors will cause the cell impedance to appear high and

2.14 Open Circuit 2.13 Voltage per Cell 2.12

little charge current to flow. Longer charge time or alteration

2.11

acid electrolyte can be depleted of sulphate ions and become essentially water. A lack of sulphate ions as charge

83 79 74 +40°C

of the charge voltage may be required before normal

+30°C

+25°C

+20°C

18

24

+10°C

2.10

70 0

charging can be resumed.

Approx % state of charge

6

12

30

36

42

48

Months

In a severe “overdischarge” condition, the lead sulphate present on the plate surfaces can go into solution in the electrolyte. Upon recharge, the water and sulphate ion in the lead sulphate convert to sulphuric acid. This can result in dendritic shorts between plates leading to cell failure. Disconnecting the battery from the load when the REPV is reached will eliminate the risk of overdischarge. The battery must be re-connected and put on charge as soon as mains power is restored. Note: When the load is removed from the battery, its voltage will increase, up to approximately 12V. Because of this phenomenon some hysteresis must be designed into the battery disconnect circuitry so that the load is not continuously reapplied to the battery as the battery voltage recovers. The battery disconnect circuitry must not itself impose any residual load on the battery after disconnection.

Storage Batteries lose capacity when standing on open-circuit because of parasitic chemical reactions. SBS self-discharge rate is very low because of the high purity of the grid lead

Figure 2 The maximum storage times before a freshening charge is required and recommended open circuit voltage (OCV) audit intervals are:

Temperature°C

Storage (Months)

OCV Audit (months)

10

48

6

15

34

6

20

24

4

25

17

4

30

12

3

35

8.5

2

40

6

2

Monoblocs must be given a freshening charge when bloc voltages approach the equivalent of 2.10 Volts per cell or when the maximum storage time is reached, whichever occurs first.

Freshening Charge Charge the monoblocs, or strings at a constant voltage equivalent to 2.27 to 2.4 Volts per cell with 10% of C10 current available, for 24 hours.

and electrolyte.

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Publication No: EN-SBS-PG-001 February 2003

Installation

Warning

Site Acceptance Tests

SBS monoblocs are supplied in a charged condition, and are

Before conducting a capacity discharge or fully loaded duty

capable of extremely high short circuit currents. Take care to

cycle test the battery must be given a commissioning charge.

avoid short-circuiting terminals of opposite polarity.

The commissioning charge shall consist of 7 continuous days of float charge at the recommended float voltage with no

Unpacking

load connected to the battery, see Charging, page 19.

Open the shipping containers and check the contents for damage and against the packing list. Immediately inform the Enersys sales department of any damaged or missing items.

Ventilation During normal charging conditions the volume of hydrogen emitted from a SBS battery is virtually negligible, and will

Battery Location

normally dissipate rapidly into the atmosphere. To comply with

Batteries can be installed on racks, shelves or in cabinets.

the requirements of EN 50272, Part 2, the battery room, or

The floor must be capable of supporting the combined weight of

cabinet must have sufficient air circulation to limit the

the battery, housing, accessories and cables.

accumulation of hydrogen gas to a maximum of 1% by volume, when the battery is being charged at the equivalent of 2.40 volts per cell.

Monobloc Connection Each battery is supplied with an instruction sheet or manual.

Optional remote venting systems are available to vent gases The positive terminal on each monobloc is identified by a

outside the battery compartment.

“+” sign and/or a red collar round the terminal. Install the monoblocs in accordance with the instructions and layout

SBS typical hydrogen evolution rates on stabilised float at

drawing. Check that the correct terminal orientation and

25°C/77°F are:

positive/negative polarity sequence is maintained throughout the battery string.

Volts/Cell

Hydrogen Evolution = ml/hour/bloc 2.27 Vpc 2.40 Vpc 2.45 Vpc

Connect the blocs together with the connectors and fasteners provided. The fastener torque values are:

Model(s)

Fastener

Torque

SBS8

0.7

3.6

SBS15

1.4

7.3

6.9

SBS30

2.4

13

24

SBS40

3.3

18

33

14

SBS8

M4

1.0 Nm / 9 in lbs

SBS60

4.2

22

43

SBS15 – 60

M6

3.9 Nm / 35 in lbs

SBS110

2.7

15

28

SBS110 –390

M8

5.0 Nm / 44 in lbs

SBS130

3.3

18

33

SBS J13–70

M6

6.8 Nm / 60 in lbs

SBS300

1.1

12

23

SBSB8 –14

M8

5 Nm / 44 in lbs

SBS390

2.2

15

29

SBSC11

M8

5 Nm / 44 in lbs

SBS J13

1.1

5.8

11.1

SBS J16

1.4

7.2

14.1

Place the insulating covers in position immediately after

SBS J30

2.6

13.3

26.3

tightening the fasteners.

SBS J40

3.8

20.1

38.4

SBS J70

5.9

31.3

59.6

SBSB8

2.4

12.8

24.3

SBSB10

3.0

15.9

30.3

SBSB14

4.9

25.6

49.3

SBSC11

5.6

29.6

56.2

The main battery cables are now ready to be connected to the system.

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Publication No: EN-SBS-PG-001 February 2003

17

Battery Housings

Battery housings should provide at least 150mm / 6 inches of free space above top terminal batteries for installation and maintenance access.

Telecom Batteries

Earthing Batteries and housings can be earthed or isolated. The earthing or isolation materials and methods will depend on the application, voltage, location and type of battery housing.

SBS batteries usually are installed on shelves or in cabinets supplied by the equipment manufacturer.

The system specification should include the most appropriate combination of earthing and isolation methods for the safety

If the equipment does not include the battery housing,

of the installation, operation and maintenance personnel,

Enersys can provide a variety of shelves and racks.

system integrity and compliance with applicable building and

Consult a Enersys representative for details.

safety codes.

Racks

It is the responsibility of the battery installer to ensure that

For higher voltage battery strings, a variety of stepped and

the battery and housing is earthed or isolated in compliance

tiered racks are available. Rack length can be customised for

with the system specification.

specific battery layouts. Consult a Enersys representative for details. ■

Non-seismic - Racks, shelves and cabinets must be assembled and installed in accordance with the instructions provided with the equipment.

■

Seismic - Because of the variations in building design and construction materials and methods, it is the responsibility of the battery installer to ensure seismic battery housings are anchored to the floor with the appropriate type and size of anchor bolts and in accordance with applicable building codes.

The completed battery and housing assembly and anchoring method must provide for a self supporting structure that can withstand overturning moments caused by earthquakes without auxiliary support or bracing.

18

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Publication No: EN-SBS-PG-001 February 2003

Charging

Voltage Setting

■

bloc, in the middle of the string

SBS are designed for continuous float operation on constant voltage chargers. Constant voltage charging is the safest, most

Front terminal models - in the centre of the side wall of a

■

Top terminal models - attached by a ring terminal to the terminal of a bloc in the middle of a string

efficient and recommended method of charging VRLA batteries.

Sensors on the side of blocs should be insulated from The recommended float voltage setting is 2.27 volts per cell

ambient temperature.

at 25°C/77°F. Therefore the system voltage setting equals Temperature compensation is capped at 40°C/104°F, at

the number of cells in series x 2.27Vpc.

higher temperature the compensated voltage approaches the Battery life and charging characteristics are affected by

battery open circuit voltage and there would be insufficient

temperature. Optimum battery life will be achieved when the

over voltage to keep the battery in a fully charged condition.

battery is operating between 20°C/68°F to 25°C/77°F. Battery life is reduced by 50% for every 10°C/18°F increase

Charging Current

in temperature. Float voltage compensation reduces the

There is no limit on the charging current provided the float

charging current as battery temperature increases, and

voltage is set at the recommended value as the battery itself

partially negates the adverse effect of high temperature.

will regulate the current, accepting only as much as is required to reach float voltage.

The recommended float voltage temperature compensation is:

Recharge time is a function of the charging current.

■

2.27Vpc + 0.004 mV per cell per °C/1.8°F below 25°C/77°F

To recharge in an acceptable time it is recommended that the

■

2.27Vpc – 0.004 mV per cell per °C/1.8°F above 25°C/77°F

current output of the charger should be equal to the standing load plus 0.1C8 to 0.4C8.

Recommended

Minimum

Float Voltage Temperature Correction

Typical recharge times are shown in Figure 4.

2.32 2.31 2.29

RECHARGE PROFILE @ 2.27Vpc & C/10 AMPS

2.28 2.27

RECHARGED FOLLOWING A 10 HOUR RATED DISCHARGE

2.26 2.25 2.24 2.23 2.22

Minimum

2.21 2.20 15

16

17

18

19

20

21

22

23

Figure 3

24

25

26

27

28

29

30

31

32

33

34

35

36

37

38

39

40

Temperature °C

The battery and ambient temperatures can be significantly different. Batteries have a large thermal mass, and there is a substantial time lag between changes in ambient and battery temperature.

Ah RETURNED AS % OF DISCHARGED

Float volts per cell

2.30

110 100 90

100% DCHD

80% DCHD

80

50% DCHD

10% DCHD

70

30% DCHD

60 50 40 30 20 10 0 0

Figure 4

1

2

3

4

5

6

7

8

9

10

11

12

TIME (HRS)

Thermal sensors must register battery temperature, not ambient temperature. As a rule, sensors should be placed in the following positions:

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Publication No: EN-SBS-PG-001 February 2003

19

Charging

Fast Charging

Ripple

“Fast” charge techniques are best suited for frequent

Voltage Ripple

discharge or cyclic applications.

Is normally seen as a cyclic variation of the DC charging voltage, usually at twice the mains supply frequency, i.e.

For applications requiring a faster recharge, a potential of 2.38 volts per cell at 25°C/77°F can be applied to the battery.

100 Hz for a 50 Hz supply, or twice the switching frequency with switch mode rectifiers.

This will achieve a faster recharge. However, it is recommended that this higher potential only be applied until the charging current remains constant for a period of two hours. The voltage should then be set at the recommended float voltage. Charging at a high potential for extended periods may warm the battery, increase grid corrosion and reduce the life of the battery.

Under steady state conditions the charger output voltage, with the load, but not the battery connected, should not vary by more than ± 1% over the range of 5 to 100% of the charger’s rated output current. With the battery disconnected, the voltage ripple, the summation of the effects of load and input supply variations, on the DC charging voltage should not vary by more than 2% of the nominal value.

Voltage temperature compensation is applicable to “fast” charging.

AC Current Ripple

Constant Current Charging

All AC ripple currents cause internal heating of the battery 2

due to the I rms x Rinternal losses. The heat generated causes an Only constant voltage charging is recommended. However, constant current charging is an acceptable method of charging SBS batteries provided safeguards are taken to avoid

increase in the battery’s self-discharge rate resulting in increased float currents and can in marginal - high ambient temperature - situations lead to thermal runaway.

overcharge. During recharge or float charge the AC current into a battery ■

The maximum recommended charging current is 0.05C8.

■

It is important to know how many ampere-hours (Amps x

should have a positive value as shown in the following graph (Figure 5). Ripple current must not exceed 10% RMS of the

hours) are removed from the battery on discharge. ■

batteries nominal C8 capacity and must never be a negative value.

The duration of a constant current recharge should be set to return 105% of the capacity removed during the discharge.

RIPPLE - OFTEN QUOTED AS A.C. RIPPLE CHARGE + VE

For example: an SBS60 is rated at 51 Ah/C8/1.75Vpc/25°C Maximum charging current = 51 x 0.05 = 2.55 amps If the battery is fully discharged, the recharge time = 51 Ah x 1.05/2.55 = 21 hours.

BATTERY CURRENT (0)

TIME

Therefore, the battery should be at 2.55 amps for 21 hours to bring it to a fully charged condition. ■

Continuing the charge for an extended period will overcharge the battery.

20

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- VE DISCHARGE

Figure 5

Publication No: EN-SBS-PG-001 February 2003

Charging

The output of some UPS inverter systems can produce the type of wave form shown in Figure 6. This will subject the battery to high frequency discharge, and the battery will slowly lose capacity and may sustain irreparable damage.

HIGH FREQUENCY SHALLOW CYCLE OFTEN QUOTED A.C. RIPPLE CHARGE + VE

BATTERY CURRENT (0)

TIME

- VE DISCHARGE

Figure 6

Cycling SBS are designed to meet or exceed the cyclic requirements of telecommunications standards, and can be cycled at charge voltages between 2.27 and 2.40 Volts per cell. SBS cyclic performance and life in an application will be affected by the following factors: ■

Discharge rate

■

Depth of discharge

■

Recharge voltage, current and time

■

Operating temperature

There are too many variables to be taken into consideration to make non-specific claims for cyclic life. For advice on the most suitable SBS cyclic battery please provide details of the application to Enersys.

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Publication No: EN-SBS-PG-001 February 2003

21

Maintenance

SBS batteries are low maintenance items compared with flooded batteries. Nevertheless, some maintenance is necessary to ensure the battery is in good condition. Installation and Maintenance activities should be recorded. Record sheets are included in the Operating and maintenance manual provided with the battery. A sample record sheet is at the end of this section. Below is a suggested maintenance routine. However, the frequency of inspection and maintenance procedures may vary depending on the criticality, number and location of installations, equipment and commercial considerations.

■

String voltage = Number of Cells in Series x Float Voltage Per Cell

■

Correct float voltage will maintain the battery in a fully charged condition, recharge in an acceptable time and achieve optimum life.

■

High float voltage will increase the rate of positive grid corrosion, gassing, risk of thermal runaway and reduce battery life.

■

Low float voltage will extend recharge time, not replace internal losses and may cause degradation of the negative plate leading to gradual permanent loss of capacity.

Records It is important to keep a written record of a battery’s service life. The record is an aid in fault diagnosis and predicting end of life. The record sheet should be kept with the battery so its operating characteristics and service history is available to anyone that works on it. Enersys may require the record if a warranty claim is made. Record sheets should be designed so that “trends” and “sudden deviations” are easily noticeable. Trend Data - can be helpful in predicting end of battery life so that battery replacement can be scheduled and sudden or catastrophic failures can be avoided.

A discrepancy between the voltage measured at the battery terminals and the charger voltmeter must be investigated. If necessary, adjust the float voltage to the correct value.

Bloc Voltage Readings Bloc voltages may vary within a string, but individual stabilised bloc voltages should be reasonably constant. The individual blocs should be within ±5% of the mean. A sudden significant, or a small but continuous, deviation from the bloc's stabilised voltage should be investigated.

Inspection Sudden Deviations - in bloc or string readings should be investigated, it may be indicative of a cell or charger defect.

Readings Every three months measure and record: ■ String voltage ■ Bloc voltage ■ Charger voltage ■ Charging current ■ Battery and ambient temperatures

String Voltage Readings String voltage must be measured at the battery’s terminal. If applicable, float voltage temperature compensation must be taken into consideration.

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Inspect the blocs for dust, damage, leaks, loose or corroded connectors. If a bloc or battery needs cleaning it should be isolated and cleaned with a damp soft cloth.

Disposal SBS batteries are recyclable. Scrap batteries must be sent to a licensed recycling facility for disposal. Scrap batteries must be packaged, transported and recycled in accordance with local and national regulations. A list of licensed recyclers and additional information on battery disposal can be found on the web site: www.recycle.net/battery.

Publication No: EN-SBS-PG-001 February 2003

Maintenance

Battery Installation and Maintenance Record Sheet Installed by:

Date:

Battery Type:

Site:

Float voltage readings to be taken at the battery terminals, not at charger output terminals. Date: Float Voltage: Current: Amb.Temp: Readings:

Volts

*mhos

Volts

mhos

Volts

mhos

Volts

mhos

Volts

mhos

Volts

mhos

String 1 Bloc 1 2 3 4 String 2 Bloc 1 2 3 4 String 3 Bloc 1 2 3 4 String 4 Bloc 1 2 3 4 String 5 Bloc 1 2 3 4 String 6 Bloc 1 2 3 4 String 7 Bloc 1 2 3 4 Notes:

*mhos = unit of conductance (equivalent to Siemens)

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Publication No: EN-SBS-PG-001 February 2003

23

EnerSys EMEA Houtweg 26 1140 Brussels Belgium Tel: +32 (0)2 247 94 47 Fax: +32 (0)2 247 94 49 EnerSys Asia No. 49, Yanshan Road Shekou, Shenzhen 518066, China Tel: +86-755-2689 3639 Fax: +86-755-2689 8013

Contact:

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Publication No: EN-SBS-PG-001 February 2003 - Subject to revisions without prior notice

Global Headquarters P.O. Box 14145 Reading, PA 196212-4145 USA Tel: +1-610-208-1991 +1-800-538-3627 Fax: +1-610-372-8613