The DCB118 Fast Charger is compatible with your current DeWALT 18V XR batteries and the new 18V/54V DeWALT XR FLEXVOLT battery. An internal fan pulls cooling air across the battery, resulting in faster charge times and reducing downtime. The DCB118 will charge the new DCB546 18V/54V XR FLEXVOLT battery in just 60 minutes. This intelligent battery charger varies the current output to suit the type of battery on charge. A bright LED indicates the charge status: charged or charging, or if there is a power problem and whether the battery is too hot or too cold to charge. Internally the circuits have a conformal coating, protecting the electronics from dust and moisture. The charger is of a compact design for easy storage or it can be wall mounted.