• How to power nearly anything off a USB port

    So it seems that if USB is 5v DC 500mA, and I have a device that is rated at 5v DC 500 mA, I should have no problem powering it. But, could I power it with a Universal Power Backup / USB Charger that is rated at 2600mAh ? I am trying to make the device portable, rather than have to plug it in. Thanks ...

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