In this DIY project, I converted a 1.5V * 4 battery-powered Joer Hot Glue Gun into a powerful

In this DIY project, I converted a 1.5V * 4 battery-powered Joer Hot Glue Gun into a powerful rechargeable version using:

1. 6x 18650 lithium batteries

2. A 20A BMS (Battery Management System)

3. A smart charging and 5V boost module

4. Compact, safe integration for portable use

Now it's completely wireless, rechargeable, and ready for heavy use—perfect for DIYers, creators, and electronics lovers!

This modification provides:

Longer usage time with 6 lithium cells

Safe charging and discharging with built-in protection

Compact, clean design using a reliable 5V boost converter

Eco-friendly upgrade—no more replacing AA batteries!

Whether you're into DIY crafts or electronics repair, this upgrade takes your hot glue gun to the next level.

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