Rechargeable lead-acid battery 18Ah/12V
FX-18
| Nominal voltage | 12V |
| Capacity | 18 Ah |
| Dimensions (Height x Width x Depth) | 167 x 181 x 77mm |
| Weight | 5.1 kg |
| Internal resistance | ~ 16.5mΩ (when battery is charged) |
| Maximum discharge current | 204 A (5s) |
| Voltage charge [25°C] | Standby use: from 13.38 V to 13.8 V (-20mV°C), Cycle use: from 14.4 V to 14.7 V (-30mV°C) |
| Maximum charging current | 7.2 A |