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  • DIY 9v Usb Ipod, Cellphone, Mp3 Portable Charger! Very EASY!

    Yes you would need one that regulates to 3.7v's.. You could use an lm317t it is a variable voltage regulator you set it to the voltage you need!

    Its fairly simple to incorporate one yourself just cut positive lead in half, attach one wire to one pole of switch and other half to other pole and voila! IMO its unessesary though essentially the charger is "off" once its unplugged from your device.

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