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Minimum Recommended Battery Capacity (Automotive and Industrial)
| Battery Capacity |
| | Ambient Temperatures |
| | -18°C [0°F] | 0°C [32°F] |
| System Voltage | Cold Cranking Amperes | Reserve Capacity(1) Amperes | Cold Cranking Amperes | Reserve Capacity(1) Amperes |
| 12 VDC | 1800 | 640 | 1280 | 480 |
| 24 VDC(2) | 900 | 320 | 640 | 240 |
| (1) The number of plates within a given battery size determines reserve capacity. Reserve capacity determines the length of time which sustained cranking can occur. |
| (2) CCA ratings are based on two 12 VDC batteries in series. |
A minimum of 6 VDC at the 3-pin power connector is required to power up the ECM on CELECT™ Plus engines.
| Specific Gravity at 27°C [80°F] | State of Charge |
| 1.260 to 1.280 | 100% |
| 1.230 to 1.250 | 75% |
| 1.200 to 1.220 | 50% |
| 1.170 to 1.190 | 25% |
| 1.110 to 1.130 | Discharged |
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Maximum Resistance of Starting Motor Circuit:
- 12-VDC starting motor (ohms) 0.00075
- 24-VDC starting motor (ohms) 0.002
Cable resistances can be obtained in accompanying battery cable resistance chart. If the frame is in ground circuit, the frame length must be considered cable of the same size as that used in the balance of the system.
| Item | Resistance Ohms |
| Connection | 0.00001 |
| Additional Contacter (series-parallel switch, relays, etc.) | 0.00020 |
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Battery Cable Sizes - American Wire Gauge (maximum length in cranking motor circuit)
12 VDC
| Number 00 | 3.7 M [12 ft] |
| Number 000 | 4.9 M [16 ft] |
| Number 0000 or Two Number 0(1) | 6.1 M [20 ft] |
| Two Number 00 | 7.6 M [25 ft] |
Battery Cable Sizes - American Wire Gauge (maximum length in cranking motor circuit)
12 VDC High-Output
| Number 00 | 2.1 M [7 ft] |
| Number 000 | 2.7 M [9 ft] |
| Number 0000 or Two Number 0(1) | 3.7 M [12 ft] |
| Two Number 00 | 4.3 M [14 ft] |
Battery Cable Sizes - American Wire Gauge (maximum length in cranking motor circuit)
24 to 32 VDC
| Number 00 | 6.1 M [20 ft] |
| Number 000 | 8.2 M [27 ft] |
| Number 0000 or Two Number 0(1) | 10.7 M [35 ft] |
| Two Number 00 | 13.7 M [45 ft] |
| Minimum ambient temperature without starting aid | -1°C [30°F] |
| Minimum cranking speed without starting aid | 150 rpm |
(1) Two strands of number 0 cable can be used in place of one number 0000 cable providing all connections are carefully made to make sure equal current flow in each parallel cable.
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