Specifications:Number of cells: 6Voltage: 12VNominal capacity: 9Ah at 20-hour discharge to 1.75V per cell at 25°CWeight: 2.5kg (Tolerance ±5.0%)Internal resistance: 18mΩTerminal type: F2Maximum discharge current: 90A (5 seconds)Short-circuit current 450AScshelf life: 7 yearsMaximum charging current: 2.7AResource 300 cyclesCharging voltage in float mode: 13.7V~13.9V at 25°CTemperature compensation: -3mV/°C/cellCharging voltage in cyclic mode: 14.6V~14.8V at 25°CTemperature compensation: -4mV/° C/cellOperating Temperature Range:Discharge:10°C~60°CCharge:10°C~50°CStorage:10°C~60°CNormal Operating Temperature Range:25±5°CCasing Material:A.B.S. UL94-HB, UL94-V0Self-Discharge:Rechargeable Gas Regulated Lead Acid (VRLA) AGM 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.