The World's first 18/54 volt 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 backward compatible with existing XR 18 volt DeWALT products, yet with the option to amplify its voltage to an unprecedented 54 volt to be used on bigger construction power tools. The battery opens up new avenues and DeWALT is 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.