How To: Build USB power chargers

Build USB power chargers

From Systm learn how to build a USB battery supply that can charge your cell phone.

In today's episode, we're going to help you build three USB battery power supplies so you never run out of power for your favorite gadgets!

Oh... and if you're working from home these days, be sure to check out Gadget Hacks' Working-From-Home Essentials.

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