Efficient Bosch cooling technology in and around the battery prevents heat damage, gives up to 65% longer run-time and up to 100% longer lifetime.

4.0Ah CoolPack cells have finer 'windings' than 3.0Ah allowing more power density ('fuel (Ah)) in the same pack size and less electrical resistance (so more fuel efficient).

That means less frequent battery charges; and 4.0Ah batteries are fully charged in just 45 minutes (charger AL1860CV)!

Electronic coding for tools and chargers

High power contacts with silver coating

Capacity indicator with 3 LEDs

Red CoolPack housing made of heat conductive material

In-built temperature sensor

Large and ergonomic release button

Robust slide-in interface

Robust housing

High quality Li-Ion cells with highest capacity

2 Years

The Bosch 2 years Battery Premium Service requires registration of batteries with part and serial numbers within 4 weeks of purchase and provision of sales receipt and registration certificate when batteries and/or chargers) are sent in for service.

*Terms & conditions apply; see these at