The BOSCH GXS18V-13N24 CORE18V Starter Kit with CORE18V 8.0Ah Performance Batteries delivers next-gen battery performance and turbo-charging speed. The BOSCH GXS18V-13N24 CORE18V Starter Kit with CORE18V 8.0Ah Performance Batteries features two CORE18V Performance Batteries, which deliver 100% more runtime and over 75% more power than the CORE18V 4.0 Ah battery for high-demand applications. Each battery is engineered with 21700 cell technology, and it features high-current power transfer that provides optimized system performance with tools featuring BITURBO Brushless Technology. BOSCH GXS18V-13N24 CORE18V Starter Kit with CORE18V 8.0Ah Performance Batteriess CoolPack 2.0 technology manages the heat of the higher power-density cells. The GAL18V-160C 16-amp turbo charger is fast and faster, getting the user back to work fast in standard mode and even faster in power-boost mode. Power-Boost mode boosts electrical current charging to 50% in the shortest time. This charger can charge a CORE18V Performance Battery from spent to 50% in 15 minutes. Active air-cooling utilizes two fans to cool the battery, optimizing charging time while protecting batteries from overheating. Bluetooth connectivity enables users to link to a smart device via Bosch Toolbox App for battery health, charge level and additional charge modes (optional Connectivity Module sold separately).