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

The Bosch CORE18 V Compact Battery is the next-gen Lithium-ion battery to keep the power and runtime, while losing the weight. The GBA18 V40 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 20% faster than previous 4.0 Ah double-layer versions.

• Compact 18V Li-ion battery engineered to provide next-gen power and runtime, while losing the weight, for optimized performance
• High-power cells use enhanced 21700 cell technology, combined with advanced battery design for greater efficiency
• Cutting-edge cell design engineered to improve performance in tools used on jobsite all day, plus CoolPack 2.0 heat management
• Bosch-exclusive CoolPack 2.0 technology cooling the battery 20% faster than previous 4.0 Ah double-layer versions
• Lightest high-power battery weighs only 1.15 Lb., but provides performance comparable to much heavier batteries

• Weight: 2.00 LBS
• Width: 7.19 (in)
• Height: 8.09 (in)
• Depth: 3.10 (in)