With the Coleman 6V XPS Rechargeable Battery Pack, you can turn any Coleman XPS product into a rechargeable device! The XPS battery pack takes the place of 4 standard D-cell batteries; it"s fully rechargeable with the included 12V and 120V adapters. For convenience, a built-in LED changes from red to green when the Pack is fully charged. The XPS Battery Back is an economical, way to run your Coleman battery products.