Li-ion battery pack with built-in safety board. Made from 18650 size cells.High energy densityLow self dischargeNo memory effectTested and approved to UN38.3Charging temperature 0°C to +45°CEnd charge voltage: 16.8VContentsBattery onlyBattery Voltage: 14.4VBattery Technology: Lithium IonBattery Capacity: 5.2AhBattery Terminals: Wire LeadsExternal Height: 70mmExternal Width: 74mmExternal Depth: 37mmPack Quantity: 1Weight: 370g