| 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 | 12.1 to 15.4 V (when engine speed at 2000 rpm) |
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| Charging circuit with load | Standard amperage | 30 A or higher | |
| Generator brush holder | Standard length | 9.5 to 11.5 mm (0.374 to 0.453 in.) | |
| Minimum length | 4.5 mm (0.177 in.) | ||
| Generator rotor | Standard resistance | Slip ring - Slip ring | 2.3 to 2.7 Ω |
| Slip ring - Core | 1 MΩ or higher | ||
| Slip ring diameter | Standard diameter | 14.2 to 14.4 mm (0.559 to 0.567 in.) | |
| Minimum diameter | 14.0 mm (0.551 in.) | ||