Bosch GBA 18V 4.0AH Professional Coolpack Battery

The special heat dissipating housing at the base of these li-ion batteries protects the cells inside from heat damage and is 100% compatible with all Bosch blue li-ion power tools and chargers within the same voltage group. Up to 65% longer runtime (cf. with 3.0 Ah battery). CoolPack technology for up to 100% longer lifetime (cf. battery without CoolPack). Bosch flexible power system - battery suitable for all tools in one voltage class. Extremely robust: fully functional even after a 3 -m drop onto concrete. Unique Bosch Premium lithium -ion technology for longer lifetime and unbeatable battery runtime. Bosch Electronic Cell Protection (ECP): protects the battery against overload, overheating and deep discharge. Bosch Hyper Charge: due to the rapid charging process, the batteries are charged to 75% after just half of the charge time. No memory effect: the battery can be charged regardless of the charging state at any time, without damaging the cells. Six month warranty but two years full service once product is registered.