Black & Decker FSB12 FireStorm 12-Volt 1.2-Amp Hour NiCad Slide Style Battery Made for use with FireStorm and Black and Decker 12-volt products Longlasting, reliable performance Up to 500 recharges Dimensions: 1.0 x 1.0 x 1.0 inches (WxHxD); weighs 3.0 pounds Zero memory technology; spring-loaded style