This Einhell Power-X-Change Starter Kit contains the following 1 x 18V 2.5Ah Power X-Change Li-ion Battery that features a 7-in-1 ABS Active Battery Management System and a 3-Step LED battery control. The microprocessor controls key parameters like temperature and voltage, and even a deeply discharged battery can be charged in repair mode, which 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 ensures good ergonomic handling. 1 x Power X-Fastcharger. Charges all batteries from the Einhell Power X-Change system. 4 amp fast-charging technology ensures shorter charging times. For optimum charging and maximum safety, the battery is permanently monitored by an intelligent charging management system. A refresh mode reactivates exhaustively discharged batteries. All up-to-the-moment information is provided by the 6-stage chargin