Battery charging current
| Charging method/Electrolyte density | Low current (5A) | High current (20A) |
| Below 1,100 | 14 h | 1 hour |
| 1,100-1,130 | 12 h | 3 h |
| 1,130-1,160 | 10 h | 2.5 h |
| 1,160-1,190 | 8 h | 2.0 h |
| 1,190-1,220 | 6 h | 1.5 h |
| Above 1,220 | 4 h | 1.0 h |
| Charging method/Electrolyte density | Low current (5A) | High current (20A) |
| Below 1,100 | 14 h | 1 hour |
| 1,100-1,130 | 12 h | 3 h |
| 1,130-1,160 | 10 h | 2.5 h |
| 1,160-1,190 | 8 h | 2.0 h |
| 1,190-1,220 | 6 h | 1.5 h |
| Above 1,220 | 4 h | 1.0 h |