Bosch 18V CORE 4 Ah Lithium-Ion Compact Battery 1 pc

The Bosch 4.0 Ah Compact Battery is designed to keep the power and runtime, while losing the weight. To improve the performance-to-weight ratio of tools used on the jobsite all day. The battery is a truly flexible power system providing compatibility with a full range of Bosch 18V Li-ion cordless tools. The engineered with 21700 cell technology, matching the power from the original two-layer 4.0 Ah battery with improved performance per cell. The Bosch-exclusive CoolPack 2.0 heat-management system results in 15% faster cooling and 135% longer life compared to previous non-Bosch CoolPack 18V batteries.