Bosch Professional 18 V 4.0 Ah Lithium-ion COOLPACK Battery

The Bosch 18 V 4.0 Ah Professional Li-Ion COOLPACK Battery is a lithium-ion battery pack for Bosch Professional cordless power tools. It delivers 18 V at 4.0 Ah, giving a practical balance of runtime for professional and DIY applications. The pack is compatible with Bosch Professional 18 V System tools and chargers, as well as tools in the AMPShare Alliance. This product includes one battery; a charger is not included and must be purchased separately. The 4.0 Ah capacity provides enough runtime for extended work sessions before the pack needs recharging.

The housing is made from a heat-conductive material that helps dissipate thermal energy during operation. An integrated temperature sensor monitors conditions inside the pack to support consistent performance. A low self-discharge rate means the battery keeps its charge during storage, remaining ready for use after time on the shelf. Electronic Cell Protection (ECP) guards against overload, deep discharge, and overheating to help preserve service life. Together, these features help maintain reliable operation across repeated charging cycles in demanding work environments.

• COOLPACK technology – manages thermal loads to extend battery service life
• Integrated LED charge-level indicator – shows remaining capacity before starting work
• Dimensions: 88 mm wide, 70 mm high, 140 mm deep
• Rechargeable battery pack – designed for repeated charge-discharge cycles
• Slide-in form factor – slots directly into compatible Bosch Professional tools