Quote:
Originally Posted by Xen
So we can use any wall wart intended for devices that charge over a USB connector for any of our devices.
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Voltage has to be near 5 volts but it's really not as important as the amps. Anything (I guess within reason) above .5 amps (500 mA) is good. You can damage equipment when the amperage is
below what's required in the specs. It's doubtful you have any USB wall warts below 500 mA but that's the main thing you need to worry about.