With their high-performance cells, Bosch lithium-ion battery packs can handle extreme loads with the lowest possible energy loss. They impress with their low weight, robustness and long battery runtime. Features and Benefits: CoolPack technology for up to 100% longer lifetime (cf. battery without CoolPack). Light weight for even more comfortable work, especially in overhead applications. Bosch flexible power system - battery suitable for all tools in one voltage class. Extremely robust: fully functional even after a 3-m drop onto concrete.