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PowerBank under 3$

by DAquad

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18650 18650 battery 18650 case bank charger gadget micro usb mobile mobile phone mobile power bank portable portable charger portable usb battery power powerbank power bank power outlet power supply power supply cover usb

PowerBank under 3$
I was thinking what I gonna do with all my Li-Ion 18650 batteries.

A PowerBank under 3$ could be a nice project to deal with. It can also be usefull for my gigantic 7 segments Arduino clock project

So I decided to make a portable power bank using 5

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Thingiverse

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