Bosch 18V CORE18V Lithium-Ion 4.0 Ah Compact Battery – GBA18V40

The Bosch CORE18V 4.0 Ah Compact Battery is designed to keep the power and runtime, while losing the weight. The GBA18V40 single-layer battery features advancements in design to reduce resistance and increase efficiency, 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 GBA18V40 is 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.


  • (1) 18V CORE18V Lithium-Ion 4.0 Ah Compact Battery

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