| Battery | Standard specific gravity | 1.25 to 1.29 at 20°C (68°F) |
| Standard voltage | 12.6 to 12.8 V at 20°C (68°F) | |
| Fuse | Standard resistance | Below 1 Ω |
| Charging circuit without load | Standard current | 14 A or higher |
| Standard voltage | 12 to 15.3 V | |
| Charging circuit with load | Standard current | 50 A or higher |
| Brush length | Standard exposed brush length | 11.2 mm (0.441 in.) |
| Minimum exposed brush length | 2.0 mm (0.0787 in.) |