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Ideal for charging any combination, of up-to four 30–500mAh, 1S UM and MCPX batteries as well as 2S battery packs equipped with the 3-wire JST-PH plug featured on UMX-class airplanes and helicopters. Its AC/DC capability means that you have the option to use a separate DC power supply or simply connect the charger to a household wall outlet. Built-in sockets make it easy to connect single-cell batteries. In addition, UM battery leads are provided when preferred by the user. The rugged case features four independently functioning charge circuits, each with a simple LED status display. All four ports have 9 watts of dedicated power and five selectable charge rates from 0.1–1.0A. Built-in protection features guard against short circuit, over current and reverse polarity. CHARGES • 2S, 120–300mAh Li-Po packs with the JST-PH plug • 1S, 200mAh ultra micro MCPX Li-Po • 1S, 500mAh ultra micro Li-Po (adapter required) • 1S, 30–150mAh ultra micro Li-PoINCLUDES • UMX-4 charge unit • AC power cord • DC power cord • 1S UM battery extension lead • 1S MCPX battery extension lead