The HART 40V Dual Port Fast Charger is the perfect accessory for charging multiple HART 40V batteries! The HART 40V Dual Port Fast Charger charges 40V batteries in sequential order. The HART 40V Dual Port Fast Charger charges batteries 2X faster than a standard 1.5A Charger. The HART 40V Dual Port Fast Charger will charge a HART 40V 4.0Ah battery in as little as an hour per port, ensuring you get back to tackling your outdoor projects very quickly. The HART 40V Dual Port Fast Charger is compatible with all HART 40V Batteries and has an LED Indicator for quick updates on charge status. All HART 40V Batteries are compatible with all HART 40V tools. The HART 40V Dual Port Fast Charger is covered by a 3-year limited warranty.