Einhell power x change systems einhell 4512021 the einhell power x change starter kit contains the following 1 x power x change 18v charger that features a 6 step charging condition display and is ready for wall fastening the charger uses an intelligent charging management system for long battery life battery status will be constantly checked and accordant loaded deeply discharge battery will be charged in repair mode1 x power x change 18v 15ah li ion battery that features a 7 in 1