The einhell power x change 18 volt 30ah li ion battery features a 7 in 1 abs active battery management system and a 3 step led battery control the microprocessor controls key parameters like temperature voltage and even a deeply discharged battery can be charged in repair mode and offers a long working battery life the high quality li ion battery cells provide nearly no self discharge and the rubber coated housing gives high impact protection and a high grip it also has a recessed grip that ens