Specifications:Number of cells: 6Voltage: 12VNominal capacity: 17Ah at 20-hour discharge to 1.75V per cell at 25°CInternal resistance: 16mOhmTerminal type: F13 (M5)Maximum discharge current: 260A (5 seconds)Shelf life: 7 yearsMaximum charging current: 5.1AResource 500 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°Ccharge: 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 Rechargeable Gas 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. • Dimensions: - Length: 180mm - Width: 78mm - Height: 165mm - Height with terminals: 168mm • Weight: 4.500kg (Tolerance ±5.0%)