Replace Battery & Refresh Screwdriver | Makita M640D

In this video you will see I disassemble this screwdriver and change battery pack from NiCD to NiMH battery. I don't know which year is this tool was created, if you know please share in video comment.

Today fee
- Screwdriver 10$
- NiMH Battery 6$
Restoration Tool
- Makita impact driver TD021D to remove the chuck screw. You watch this tool in detail    • Repair & Refresh Hex Drill Driver | M...  
- Battery Spot Welder model SUNKKO709AD+

I hope you find something useful & enjoy this video!
I am happy to receive your feedback, advice, suggestions to improve myself.
!!! I apologize for the mistake if I have made in this restoration !!!
**I still keep some parts, I want to save the world's environment**
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