Sealed lead-acid battery (SLA) does not require maintenance, designed for use in electric bicycles, electric wheelchairs, electric cars, toys, electric scooters, portable television, video equipment, lifting equipment, forklifts and etc. Specifications: Number of elements: 6 Voltage: 12 V Nominal capacity: 12 Ah at 20-hour discharge to 1.75 V per element at 25 ° C Weight: 4.13 kg (Tolerance ± 5.0%) Terminal type: F2 Maximum discharge current: 120 A (5 seconds) Short-circuit current 570 A Shelf life: 7 years Resource 400 cycles Maximum charging current: 3.6 A Charge voltage in buffer mode: 13.7 V ~ 13.9 V at 25 ° C Temperature Compensation: -3mV/°C/cellCycle charging voltage: 14.6V~14.8V@25°CTemperature compensation: -4mV/°C/cellOperating temperature range: Discharge: -20°C~60°C Charge: 0°C~50°C Storage: -20°C~60°CNormal operating temperature range: 25±5°CCasing material: A.B.S. UL94-HB, UL94-V0Self-discharge:Rechargeable battery AGM regulated lead acid (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!