Bosch GSA18V-LI Cordless Reciprocating Sabre Saw Features: Cut up to 100 spruce beams (100 x 100 mm) to length with only one battery charge Electronic Motor Protection (EMP) protects the motor against overload and ensures a long lifetime Easy handling: easy and fast saw blade changes due to new SDS mechanism 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 2-stage speed setting for different materials Ergonomically shaped handle with comfort zone in the softgrip area for a secure hold and low user fatigue 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 What is the Benefit of the New Bosch Cool Touch Batteries 4.0 Ah Lithium-Ion CoolPack