In this video, I show you how to create a tiny, functional power bank using an old vape battery, a simple boost converter module, and a 3D-printed case.
I found this project on Thingiverse, and i have USB boost module, it was lying down for many years.
The battery I used has 400mAh of capacity, which is enough to:
⚡ Top up a vape
⚡ Boost your smartphone a few extra percent
⚡ Run small electronics or emergency lights
⚡ Create a portable and lightweight backup charger
📦 Materials Used:
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1x Old vape battery (Li-ion ~400mAh)
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USB boost converter module (from AliExpress or eBay)
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3D printed case link to stl files https://www.thingiverse.com/thing:6156122
P.S. I Used it about 1 year to charge my vape in disaster situation when i don't have charger. And in one day USB module want to charge.