Power bank | how to make 5000 mAh power bank from mobile battery | powerbank from mobile battery.
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Title : power bank | how to make a power bank from mobile battery simple | powerbank from mobile battery.
You need : plastic box, mobile battery, step up converter 3v - 5v, female USB, 3 mm jack, wire, ...
Tools : glue gun, craft blade,
Step 1 : ta
