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

The Bosch CORE18V Compact Battery is the next-gen Lithium-ion battery 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. 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.

Specifications:

• A-h Capacity: 4.0
• Battery Chemistry: Lithium Ion
• Battery Voltage: 18
• Battery Watt Hours: 72.0Wh
• Height: 1.85"
• Length: 4.6"
• Watts: 800.0
• Width: 3.0"