Nitecore's New i4 Intellicharger is an extremely efficient four bay charger with twice the charging speed from the original i4 charger. The New i4 is capable of charging numerous IMR, Li-ion, LiFePO4, Ni-Mh, and Ni-Cd batteries and is optimized for IMR cells. With the Active Current Distribution (ACD) Technology, the New i4 automatically identifies battery type and capacity, and applies an appropriate charging current up to 1.5A. The New i4 is also able to recover low voltage cells with the new Lithium Battery Recovery Mode, bringing new life to over drained cells. Nitecore has implemented numerous safety features such as: over charge protection, over time protection, short circuit protection, reverse polarity protection, and a fire resistant Polycarbonate housing. The Nitecore New i4 Intellicharger is an affordable, fast charging, and safe two bay charger for all your rechargeable batteries.