| Battery | Specific gravity | 1.25 - 1.29 at 20°C (68°F) | |
| Voltage | 12.5 - 12.9 V at 20°C (68°F) | ||
| Generator assembly | Rated output | 12 V 70 A, 12 V 90 A (Cold spec.) | |
| Regulating voltage | 13.2 - 14.8 V | ||
| Generator rotor | Resistance | 2.1 - 2.5 Ω at 20°C (68°F) | |
| Slip ring diameter | STD | 14.2 - 14.4 mm (0.559 - 0.567 in.) | |
| Minimum | 12.8 mm (0.504 in.) | ||
| Brush exposed length | STD | 9.5 - 11.5 mm (0.374 - 0.453in.) | |
| Minimum | 1.5 mm (0.059 in.) |