Experience unrivalled runtime and performance with the DeWalt 54V XR FlexVolt 12.0Ah battery. This innovative Lithium-Ion battery automatically adjusts its voltage to match your DeWalt power tools, delivering exceptional power for heavy-duty applications without the need for mains power. Enjoy faster application speeds and make existing tasks quicker, all while benefiting from full backward compatibility with the 18V XR range. This 54V battery provides 54V power across a whole range of tools, and is the same size as the DeWalt DCB547 9.0Ah battery but offers significantly more power. Key Features: * Automatically switches voltage (18V to 54V) for compatible DeWalt tools * Unrivalled enhanced runtime and performance * Faster application speeds * Fully backward compatible with all 18V XR range tools * More power in the same physical size as the DCB547 9.0Ah battery Product Summary: DeWalt 54V XR FlexVolt Battery, 12.0Ah capacity, Lithium-Ion technology, DCB548-XJ part number, compatible with DeWalt 18V and 54V XR tools.