DIY USB Power Bank — Hackaday

USB power banks give your phone some extra juice on the go. You can find them in all shapes and sizes from various retailers, but why not build your own? [Kim] has a walkthrough on how to do just that. This DIY USB Power Bank packs 18650 battery cells and a power management board into a 3D printed case. The four […]

via DIY USB Power Bank — Hackaday

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