Bosch 18-V 2-Pack Lithium-ion Battery (4 Ah) GBA18V40-2PK

The Bosch CORE18V Compact Battery 2-Pack features two next-gen Lithium-ion batteries that each 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. Engineered with 21700 cell technology, the battery matches the power from the original two-layer 4.0 Ah battery with improved performance per cell. Bosch engineered the exclusive CoolPack 2.0 technology to manage the heat of the higher power-density cells, and it provides better cooling than the previous-generation CoolPack system. CoolPack 2.0 cools the battery 15% faster than previous 4.0 Ah double-layer versions. This new-gen CORE18V still features compatibility with Bosch 18V Lithium-ion tools and chargerspact 18V Li-ion battery – engineered to provide next-gen power and runtime, while losing the weight, for optimized performanceHigh-power cells – use enhanced 21700 cell technology, combined with advanced battery design for greater efficiencyCutting-edge cell design – engineered to improve performance in tools used on the jobsite all dayBosch-exclusive CoolPack 2.0 technology – cooling the battery 15% faster than previous 4.0 Ah double-layer versionsLightest high-power battery – weighs only 1.15 Lb., but provides performance comparable to much heavier batteriesSystem compatibility – features compatibility with Bosch 18V Lithium-ion tools and chargersCharge-status indicator – features high resolution for clear visibilityBosch 18V batteries are covered by a three year limited warranty – for details, visit rb-ptio/PowerToolWarranty or call 1-877-BOSCH99Bosch 18V batteries are covered by a three year limited warranty; For more information, visit manufacturer’s website