
USB Battery Charger
thingiverse
This portable power pack is a compact USB charger that runs on a single 18650 battery, which can be effortlessly removed and swapped out through a conveniently located slide-out compartment. Users can either top off their devices or swap batteries on the fly, making it perfect for commuters and outdoor enthusiasts alike. The electronic module inside was cleverly repurposed from an old USB gadget.
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