General description Dewalt Flexvolt batteries Twin Pack offers a revolutionary power solution for your tools. Designed for use with XR FLEXVOLT power tools, these batteries provide game-changing levels of performance. They can switch between 18V and 54V, making them compatible with existing 18V systems and allowing you to run two batteries simultaneously for a powerful 108V output. Technical specifications Voltage: 18V / 54V Battery Capacity: 18V 6.0Ah / 54V 2.0Ah Cell Components: 15 x 18mm Cells Wh Without Transport Cap: 108 Wh Wh With Transport Cap: 3 x 36 Wh Length: 125 mm Width: 85 mm Height: 90 mm Weight: 1.0 Kg