The IN3802000 AC DC battery charger is designed to charge 9S cell li-ion battery pack with high reliability. The AC DC charger accepts worldwide input voltage 100V-240Vac and outputs 37.8Vdc, features advanced charging algorithms, highly effective charging, energy saving, safety and environmental protection. The 9 cell AC battery charger has been tested by Nationally Recognized Test Lab(NRTL) to be safe, and meets the latest DOE regulations for Energy efficiency level VI.