The HART 40V 4A Fast Charger is the perfect charger for charging your batteries in an hour or less. The HART 40V 4A Fast charger charges batteries 2X faster than the 1.5A HART 40V Charger. The charger is equipped with an LED indicator that shows charge status for quick and easy updates on the charge status of your battery. This charger is also unique because it can be mounted on your wall to save you as much space as possible. It is also fan-cooled to keep from overheating. The HART 40V Charger is compatible with all HART 40V Batteries. The HART 40V Charger is covered by a 3-year limited warranty