The DeWalt DCB546 is a 54V XR FLEXVOLT lithium-ion battery designed to power demanding cordless tools on site without compromising on performance or runtime. This innovative battery technology automatically switches between 18V and 54V operation, making it compatible with both DeWalt's heavy-duty 54V FLEXVOLT range and the extensive 18V XR cordless tool platform. The FLEXVOLT system represents a significant advancement for mobile tradespeople undertaking heavy-duty applications away from mains power. The intelligent voltage-switching technology means you can use a single battery across a huge variety of cordless tools, eliminating the need for multiple battery platforms and reducing equipment investment costs. When connected to an 18V XR tool, this battery operates at 6.0Ah capacity, providing extended runtime for demanding tasks. In 54V mode with FLEXVOLT tools, it delivers 2.0Ah capacity with the higher voltage required for the most power-hungry applications. The onboard fuel gauge allows you to monitor charge status at a glance, helping you plan work and avoid unexpected downtime on site. This battery is ideal for professional contractors, carpenters, electricians and other tradespeople who need reliable cordless power for heavy-duty cutting, drilling and fastening applications throughout the working day. Features and Benefits: • Compatible with existing DeWalt XR 18V lithium-ion power tools as well as 54V FLEXVOLT machines • Automatically switches voltage according to connected power tool • Onboard fuel gauge for checking power and charge status Specifications: Battery Capacity: 6.0Ah/2.0Ah Battery Voltage: 18V/54V Battery Chemistry: Lithium-Ion