Simple DIY PowerBank - 18650 Holder
thingiverse
3 in 1! 18650 charger, device charger and power bank! It uses very low cost parts and works fine. Input current (battery charge) - 1A, output (device charge) - 0.5A. It is very small and you always can take as much battery cells as you want it. Hope a lot of photos will help you to build it! Partlist: 1. 18650 holder goo.gl/dXNueM 2. LiIon charger goo.gl/ivtE4W 3. StepUp converter goo.gl/UB9g8K 4. Switch goo.gl/XazCMp 5. M3 square nuts - 2pcs 6. M3x6 male screws - 2pcs 7. Wires and tubes
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