| Battery | Standard specific gravity | 1.25 to 1.29 at 20°C (68°F) | |
| Charging circuit without load | Standard amperage | 10 A or less | |
| Standard voltage | 13.2 to 14.8 V | ||
| Charging circuit with load | Standard amperage | 30 A or more | |
| Brush length | Standard length | 10.5 mm (0.413 in.) | |
| Minimum length | 4.5 mm (0.177 in.) | ||
| Generator rotor assembly | Slip rings | Standard resistance | 1.85 to 2.25 Ω at 20°C (68°F) |
| Slip rings - Rotor | Standard resistance | 10 kΩ or higher | |
| Slip rings diameter | Standard diameter | 14.2 to 14.4 mm (0.559 to 0.567 in.) | |
| Minimum diameter | 14.0 mm (0.551 in.) | ||