BLACK+DECKER HPB12 12-Volt Slide-Pack Battery Features high output battery cell No memory technology Provides up to 500 recharges Compatible with all spring-loaded battery style Firestorm and Black & Decker 12-Volt tools Compatible with all spring-loaded battery style Firestorm and Black & Decker 12-Volt tools Lightweight, long-lasting and efficient; installs and removes quickly and easily Supplies up to 500 recharges Weighs 1-1/5-Pound Includes a 2-year warranty