Fastest saw in its class with up to 2 times more runtime, 30% faster cutting, and 5 times longer tool life than competitive saws. POWERSTATE™ brushless motor. REDLITHIUM™ XC4.0 Extended Capacity battery pack. REDLINK PLUS™ Intelligence for optimized performance and protection from overloading, overheating, and over discharging. Keyless adjustable shoe, keyless QUIK-LOK® universal blade clamp, integrated LED light, and hang hook. Voltage: 18V. Stroke length: 1 1/8″. SPM: 0-3,000. Tool warranty: 5 years. Battery warranty: 3 years. Length: 18 1/2″. Weight: 8.9 lbs.Kit Includes: 1 M18 Fuel™ Sawzall® Reciprocating Saw 1 M18™ REDLITHIUM™ XC4.0 Extended Capacity Battery Pack 1 M18™ & M12™ Multi-Voltage Charger 1 Heavy Duty Carrying Case 1 Blade