| Battery | Standard specific gravity | 1.25 to 1.29 at 20°C (68°F) | |
| Standard voltage | 24.0 to 25.0 V at 20°C (68°F) | ||
| Charging circuit without load. | Standard current | 10 A or less | |
| Standard voltage | 26.0 to 29.6 V | ||
| Charging circuit with load. | Standard current | 30 A or higher | |
| Generator rotor assembly (for 60 A) |
Standard resistance | Slip ring - Slip ring | 10.6 to 11.4 Ω at 20°C (68°F) |
| Slip ring - Rotor core | 10 kΩ or higher | ||
| Diameter | Standard | 14.2 to 14.4 mm (0.559 to 0.567 in.) | |
| Minimum | 14.0 mm (0.551 in.) | ||
| Generator brush holder assembly (for 60 A) |
Exposed length | Standard | 9.5 to 11.5 mm (0.374 to 0.453 in.) |
| Minimum | 4.5 mm (0.177 in.) | ||
| Generator drive end frame assembly (for 60 A) |
Standard resistance | P1 - Drive end frame P2 - Drive end frame P4 - Drive end frame |
10 kΩ or higher |
| P1 - P3 P4 - P3 |
1.5 Ω or less | ||
| Generator brush holder assembly (for 80 A) |
Exposed length | Standard | 9.5 to 11.5 mm (0.374 to 0.453 in.) |
| Minimum | 4.5 mm (0.177 in.) | ||