Specifications: Voltage: 12V Terminal type: F2 Nominal capacity: 12Ah at 20-hour discharge to 1.8V per cell at 25°C Internal resistance: 17mΩ Maximum charging current: 3.6A Maximum discharge current: 120A (5 seconds) Shelf life: Up to 10 years Float charging voltage: 13.5V~13.8V at 25°C Temperature compensation: -20mV/°C Cyclic charging voltage: 14.4V~15V at 25°C Temperature compensation: -30mV/°C Operating temperature range: Discharge: -15°C~50°C Charge: 0°C~40°C Storage: -15°C ~ 40 ° C• The capacity of the battery is:- at a temperature of: 25 ° C - 100%- at a temperature of: 0 ° C - 80%• Weight: 3.5 kg (Tolerance ± 5.0%)• Dimensions: 151x95x98 mm Case material: A.B.S. UL94-HB, UL94-V0 Attention! Rechargeable batteries can be stored for up to 6 months at a temperature of 25 ° C, without recharging. The monthly self-discharge rate is less than 3% at 25 ° C. Please charge the batteries before use!