While breadboarding may seem like some odd combination of snowboarding and consuming the fluffy pastry at the same time, it's actually just the technical term for using a construction base to build a prototype electric circuit. Breadboards are solderless so they're great for circuit design and are reusable.
Check out this hacks video to learn how to turn a 7805 Voltage REgulator and 4 AA batteries into a power supply that can charge anything which runs off USB.
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