HK AC/DC Adapter Power Supply 3.7V 650mA
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HK AC/DC Adapter Power Supply 3.7V 650mA

Used OEM power adapter.   Adapter has been tested with a multi-meter and guaranteed to work.    If your purchasing based on the stats- keep in mind that you need to match Volts, Amps or miliamps (A or mA), Current (AC or DC on output), Tip Size, and Tip Polarity (- or +   to determine see the line that connects to the broken circle).