M18 Sawzall Reciprocating Saw, Bare Tool, No Battery Or Charger Included, Counter Balance Mechanism Reduces Vibration For More Control & Less Fatigue, All Metal Gearing & Gear Case Provide Maximum Durability, Lever Action Quik-Lok Blade Clamp Provides Fast & Easy Blade Changes, Redlink Intelligence Provide Ultimate Performance & Protection Against Jobsite Conditions, Slim Front End Design Provides Improved Ergonomics, Offering Maximum Comfort & Control, Replacement Battery: TV #190-415, TV #111-525, TV #211-450, TV #111-528, TV #190-417, TV #227-136 & TV #227-137, Charger Use TV #154-169.