The Dewalt DCB547 18V/54V XR Flexvolt Battery, compatible with existing XR 18V Dewalt products The World's first 18/54V convertible battery pack system from Dewalt gives you raw power anywhere and the dawn of a new era in cordless power tool technology. Dewalt XR Flexvolt is completely backwards compatible with existing XR 18V Dewalt products, yet with the option to amplify its voltage to an unprecedented 54V to be used on bigger construction power tools. The battery opens up new avenues and Dewalt are delivering the new XR Flexvolt product range to accompany this innovation. This will provide in excess of a full day's runtime on a single charge for most users. The potential for this technology is limitless for each and every trade with game-changing levels of performance. Includes transport cap for safe transportation of batteries meaning it isn't a class 9 dangerous product. Features: Completely backwards compatible with existing Dewalt XR 18V products Dewalt XR Flexvolt battery stan