Fixing Locked Makita 18V Batteries!

PCBWay: https://pcbway.com/g/4g0BKg
PCBWay offers PCB manufacturing, 3D printing and CNC services.

Makita 18V batteries can permanently lock if the BMS detects a fault. In this video, I repair faulty Makita batteries using cell balancing, fuse repair, BMS swapping, and the OBI diagnostic tool to clear errors and reset the BMS board.

You can also email me at obiunlock@gmail.com if you want to be among the first to know when they become available for sale.

🔥 All 3D print files are available for FREE on MakerWorld to download and print: https://shorturl.at/W719g

- OBI device build video: https://youtu.be/kUg9jWvf5FM

🛠️Used parts:
- Arduino Nano: https://shorturl.at/CDrs5
- Makita charger connector: https://shorturl.at/FXyoS
- Spade terminals: https://shorturl.at/iqGX7
- 4,7k ohms 0.25W resistors: https://shorturl.at/FKcI7
- M7AC charger: https://shorturl.at/OCfbv

- OBI Project on GitHub (by Martin Jansson): https://shorturl.at/OhR8t
- Makita battery charging adapter video - https://shorturl.at/oITaO

Social media:
https://www.instagram.com/welldonetips/

💬 Got questions or ideas for the next build? Drop them in the comments!