Description
Specification
Nominal Voltage: 12V
Rated Capacity: 75 Ah / C20 / 1.75VPC / 27°C
Dimensions (±2mm)
Length: 351mm (13.82 in.)
Width: 167mm (6.57 in.)
Total Height: 175mm (6.89 in.)
Approx. Weight: 23.0 Kg (50.71 lbs)
Terminal: B6 Bolted
Capacity @ 27°C
67.5 Ah (10hr, 6.75 A, 10.5 V/battery)
55.7 Ah (5hr, 11.15 A, 10.2 V/battery)
42.2 Ah (1hr, 42.21 A, 9.6 V/battery)
Capacity affected (Temperature at C20 hr rate)
40°C (104°F): 110%
27°C (80.6°F): 100%
0°C (32°F): 80%
-15°C (5°F): 60%
Case Material
Standard: PPCP (12AL075)
FR Version: UL 94-V0 (12ALZ075)
Internal Resistance (as per IEC): Approx. 5.0 mΩ for a fully charged battery (27°C)
Short Circuit Current (as per IEC): 2367 A
Operating Temperature Range: -20°C to +50°C
Nominal Operating Temperature Range: 27°C ± 3°C
Standby use (27°C)
Charging Voltage: 13.5 V/battery
Charging Current: Max. 25% of rated capacity
Temperature Compensation: ± 18mV/battery/°C
Cyclic use (27°C)
Charging Voltage: 13.8 V/battery
Charging Current: Max. 25% of rated capacity
Temperature Compensation: ± 18mV/battery/°C
Self-Discharge: < 4% per month at 27°C
Constant Power Discharge Rating (Watts per battery @ 27°C)
| ECV/Time | 10 min | 15 min | 20 min | 30 min | 60 min | 2 hrs | 3 hrs | 5 hrs | 8 hrs |
|---|---|---|---|---|---|---|---|---|---|
| 1.60 | 1710 | 1400 | 1122 | 852 | 515 | 310 | 215 | 147 | 96.0 |
| 1.70 | 1763 | 1351 | 1095 | 825 | 504 | 302 | 213 | 145 | 94.5 |
| 1.75 | 1679 | 1300 | 1060 | 800 | 489 | 298 | 211 | 143 | 93.7 |
| 1.80 | 1595 | 1250 | 1025 | 775 | 475 | 295 | 210 | 142 | 93.0 |
Constant Current Discharge Rating (Amperes @ 27°C)
| ECV/Time | 10 min | 15 min | 20 min | 30 min | 60 min | 2 hrs | 3 hrs | 5 hrs | 8 hrs |
|---|---|---|---|---|---|---|---|---|---|
| 1.60 | 146.79 | 117.33 | 93.12 | 70.65 | 42.21 | 25.60 | 17.50 | 12.04 | 7.47 |
| 1.70 | 137.86 | 107.26 | 86.32 | 65.00 | 41.14 | 23.53 | 16.44 | 11.15 | 7.15 |
| 1.75 | 132.65 | 104.84 | 85.53 | 64.36 | 40.63 | 23.21 | 16.41 | 11.11 | 7.10 |
| 1.80 | 130.00 | 103.17 | 83.33 | 63.73 | 38.88 | 23.05 | 16.33 | 11.02 | 7.07 |
Notes:
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The above data are average values per battery and can be obtained within five charge/discharge cycles.
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A tolerance of ±5% is applicable for the above constant power and constant current discharge values.
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It is recommended to follow IEEE-485 Standard for battery sizing (in terms of aging margin and design margin) for optimal performance and life.
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Considerable voltage drop across cables, if any, shall be considered during battery sizing.
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