Specifications: Number of cells: 6 Voltage: 12 V Nominal capacity: 14 Ah at 20-hour discharge to 1.75 V per cell at 25 ° C Weight: 4.35 kg Internal resistance: 14 mΩ Terminal type: M5 Maximum discharge current: 180 A (5 seconds) Shelf life: 5 years Maximum charging current: 4.8 A Float charging voltage: 13.6 V ~ 13.8 V at 25 ° C Temperature compensation: -3 mV / ° C / cell Cyclic charging voltage: 14.5 V ~ 14.9 V at 25 ° C Temperature compensation: -4 mV / ° C / cell Operating temperature range: discharge: -20 ° C ~ 60 ° C charge: - 10 ° C ~60°C Storage: -20°C ~ 60°C Normal operating temperature range: 25±5°C Case material: A.V.C. UL94-HB, UL94-V0 Self-discharge: The VRLA battery can be stored for up to 6 months at 25°C, and then recharging is recommended. The monthly self-discharge rate is less than 3% at 25°C. Please charge the batteries before use. Production date: