Technical data:Voltage: 18 VoltCapacity: 4000 mAhPower: 72 WhType: Li-IonColour: BlackLength: 80 mmWidth: 160 mmHeight: 80 mm Our offer is a high-quality battery, which is ideal as a replacement battery for your old or defective tool battery, but also as an additional replacement battery for on the go. ATTENTION: Batteries that are supplied with a charger may only be charged with this charger. Only new quality branded cells are used, and protective electronics and the use of high-quality components offer you a high degree of safety against both overcharging and short circuits. The battery can therefore achieve a higher number of charge-discharge cycles. This means a longer service life for your new battery.