Specifications: Number of cells: 6Voltage: 12VNominal capacity: 12Ah at 20-hour discharge to 1.75V per cell at 25°CWeight: 4.0kgInternal resistance: 14mΩTerminal type: M5Maximum discharge current: 180A (5 seconds)Shelf life: 5 yearsMaximum charging current: 2.1AFloat charging voltage: 13.6V~13.8V at 25°CTemperature compensation: -3mV/°C/cellCyclic charging voltage: 14.5V~14.9V at 25°CTemperature compensation: -4mV/°C/cellOperating temperature range:Discharge:-20°C~60°CCharge:-10°C~ 60°C Storage: -20°C ~ 60°C Normal Operating Temperature Range: 25±5°C Shell Material: A.V.C. UL94-HB, UL94-V0 Self-Discharge: The 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. Production Date: