This advanced fully automatic three-stage 50 Amp battery charger is ideal for charging all types of 12 Volt lead-acid batteries ( Flooded / Absorbed Glass Mat (AGM) / Gel Cell) from a 120 V, 60 Hz or 230 V, 50 Hz AC source. User Selectable ( by DIP Switch) for 2 or 3 stage, rapid and safe charging of standalone and loaded Lead Acid Batteries. “Half Power Mode” reduces maximum charging current to half the rated capacity, allows for safe charging of lower capacity batteries. The unit can also be used as a DC Power Supply. Features include overload, short-circuit and over-temperature protection. The unit allows charging of up-to 2 separate battery banks.