Technical Data: Voltage: 20 Volts, Capacity: 4000 mAh, Power: 80 Wh, Type: Li-Ion, Color: Black, Length: 123 mm, Width: 53 mm, Height: 84 mm. Parkside Battery PAPS 204 A1 20V/4Ah Li-Ion for devices in the Parkside X 20V family. Smart Li-Ion battery with adjustable settings via mobile app (via Bluetooth). Lithium-ion battery in a new power size thanks to intelligent battery technology and the use of 21700 cells. Compact size: 37% less volume and 13% less weight. Our offer includes a high-quality battery that is ideal as a replacement for your old or defective tool battery, as well as an additional spare battery for on-the-go use. Note: Batteries that come with a charger should only be charged with that charger. Only new quality brand cells are used. A protective electronics system and the use of high-quality components provide a high level of safety against overcharging and short circuits. This allows the battery to achieve a higher number of charge-discharge cycles, resulting in a longer lifespan for your new battery.