The M18 FUEL™ SAWZALL® Reciprocating Saw cuts faster than its corded counterparts and offers up to 2X more runtime and 5X longer tool life than competitive saws.The POWERSTATE™ brushless motor provides cutting power that has only been associated with corded tools. The M18™ REDLITHIUM™ XC5.0 Extended Capacity Battery Pack (not included) delivers up to 2.5X runtime and provides more work per charge and more work over the life of the pack than competitive batteries.