DeWALT XR FLEXVOLT Battery

The XR FLEXVOLT 6Ah battery automatically changes voltage when you change tools, providing maximum runtime in 18V XR tools and the power of corded in 54V XR FLEXVOLT tools. It also includes a built-in LED Fuel Gauge for instant charge status, and is compatible with all 54V XR FLEXVOLT and 18V XR tools and chargers.DeWALT XR FLEXVOLT. Product type: Battery, Battery technology: Lithium-Ion (Li-Ion), Battery capacity: 6 Ah. Battery width: 8.5 cm, Battery depth: 12.5 cm, Battery height: 9 cm