Voltage steps up to 54-volt to deliver unprecedented power Compatible with all 18 volt XR and 54 volt XR Flexvolt tools Compatible with all 18 volt XR chargers DeWALT XR Flexvolt battery stands at the forefront of cordless technology World's first convertible 18/54 volt battery, offering unprecedented levels of power Provides the unique ability to power even heavy duty construction power tools Completely backward compatible with existing DeWALT XR 18 volt products Offers market-leading runtime in 18-volt products, with the option to amplify its voltage to power newly developed 54-volt heavy duty construction equipment DeWALT accompany this system with the revolutionary XR Flexvolt range: cordless, heavy duty construction power tools with all the power of cordedBattery Capacity: 6.0Ah Battery Type: XR Flexvolt Battery Voltage: 18/54 volt Height: 90 mm Length: 125 mm Width: 85 mm