Parameters: Battery voltage 18 V Battery capacity 4 Ah Energy 72 Wh Weight 577 g The new standard of performance in cordless work: high-performance LiHDX batteries with Tabless technology Handy and compact: the small LiHDX battery with the performance of a large Li-Power battery The innovative Tabless technology gives LiHDX batteries the longest service life in their class LiHDX / 4.0 Ah in numbers: Up to twice the runtime in extreme applications compared to LiHD / 4.0 Ah Full battery charge in a maximum of 30 minutes with the ASC 290 fast charger **