🔋 DIY Mini Power Bank from an Old Vape Battery | 3D Printed Case + Boost Module

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. It’s a quick and easy electronics project that’s perfect for beginners, hobbyists, or anyone into recycling old tech!

This project is great for those little batteries you’ve got lying around. Don’t throw them away—turn them into something useful!


🧰 What You’ll See in This Video:

✅ Disassembling an old vape to salvage the battery
✅ Soldering the battery to a USB boost module
✅ Assembling the parts into a 3D-printed case
✅ Testing and using the power bank to charge small devices
✅ Bonus tips for safety and portability

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:

  • 1x Old vape battery (Li-ion ~400mAh)
  • USB boost converter module (from AliExpress or eBay)
  • 3D printed case (model from STL site, e.g., Printables)
  • Link to stl files https://www.thingiverse.com/thing:6156122
  • Hot glue or adhesive for securing parts
  • Basic soldering tools

💬 Let me know in the comments:
Would you use one of these tiny power banks? Have you built anything cool from vape batteries?

👍 If you enjoyed this build, don’t forget to like, subscribe, and hit the notification bell for more DIY tech projects!


🔖 Tags:

DIYPowerBank #VapeBatteryMod #3DPrinting #USBCharger #MiniPowerBank #ElectronicsDIY #LiIonBattery #BatteryMod #PowerBankHack #RecyclingTech #MakerProject #BoostConverter

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