Tired of old NiCd batteries dying too fast? In this video, I show how I rebuilt an old Bosch screwdriver battery pack from outdated NiCd cells to a modern 3S4P lithium pack — using recovered cells from wasted vapes!
What you’ll see in this build:
Building a 12V 1600mAh 3S4P lithium pack
Adding a 40A BMS for safety
Installing an LED charge indicator
Final test of the upgraded Bosch screwdriver
💡 With this upgrade, the tool is lighter, more powerful, charges faster, and gets a second life — without spending money on new batteries.
🔧 Parts used in the video:
Reclaimed 18650 cells from vape devices
40A 3S BMS board
USB to 12V lithium charger module
LED battery indicator
📌 Safety note: Always be careful when working with lithium cells. Use proper tools, wear safety glasses, and never skip installing a BMS.
👍 Like the project? Subscribe for more DIY electronics, battery rebuilds, and tool upgrades!
Tired of old NiCd batteries dying too fast?
In this video, I show how I rebuilt an old Bosch screwdriver battery pack from outdated NiCd cells to a modern 3S4P lithium pack — using recovered cells from wasted vapes!
What you’ll see in this build:
💡 With this upgrade, the tool is lighter, more powerful, charges faster, and gets a second life — without spending money on new batteries.
🔧 Parts used in the video:
📌 Safety note:
Always be careful when working with lithium cells. Use proper tools, wear safety glasses, and never skip installing a BMS.
👍 Like the project?
Subscribe for more DIY electronics, battery rebuilds, and tool upgrades!
user13