Bosch 18 Volt 2 Pack 2 Amp Hour Lithium Power Tool Battery Rotary tools Gearbox and belt drive design increases Gearbox and belt drive design increases vertical cutting capacity Wood Battery Size Lithium Ion Length Of Stroke 1 1 8 in Cordless Tool Type Reciprocating Saw Condition New Power Source Battery Power Tool Features Case Included Convenient two pack set – supplies two Bosch 18 V Lithium ion batteries designed for provide continuous cordless power on the jobsite with a lighter battery Efficient size – provides 18 V power and 2 battery CoolPack Technology – keeps battery cooler for up to twice battery lifetime Single cell monitoring – maximizes the performance of each individual cell for longer runtime Electronic monitoring systems – protects both tool and battery for long tool life Integrated LED fuel gauge – displays battery's state of charge Cold weather operation – works in temperatures down to 4 ° F System compatibility – operates with all Bosch 18 V Lithium Ion tools and chargers as part of the Flexible Power System