Specifications:Number of cells: 6Voltage: 12VNominal capacity: 9Ah at 20-hour discharge to 1.75V per cell at 25°CWeight: 2kg(Tolerance ±5.0%)Internal resistance: 16mΩTerminal type: F2Maximum discharge current: 134A (5 seconds)Shelf life: 7 yearsMaximum charging current: 2.7AResource 300 cyclesCharging voltage in buffer mode: 13.5V~13.8V at 25°CTemperature compensation -20mV/°CCharging voltage in cyclic mode: 14.4V~15V at 25°CTemperature compensation -30mV/°COperating temperature range: discharge: -15° C~50°C Charge: 0°C~40°C Storage: 0°C~40°C Normal Operating Temperature Range: 25±5°C Case Material: A.B.S. UL94-HB, UL94-V0 Self-Discharge: The 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.