Are Cheap Power Tool Batteries Safe to Use? Teardown Test!【Just Buy official Battery】

DENKI OTAKU

チャンネル登録者数 8.91万人

1.4万回視聴・ 716いいね・ 2024/09/14

Are Cheap Power Tool Batteries Safe to Use? Teardown Test!【Just Buy official Battery】

Correction: Later I found an NTC thermistor on the back side of the circuit board. It detects overheating and activates protection. I didn't see it at the time of filming.
Supplement: The monitored voltage is of 1 cell individually and all 5 cells combined. The battery doesn't monitor the voltage of the remaining 4 cells individually. This may cause overcharging.

I do not recommend using any batteries other than genuine batteries. The genuine battery I disassembled in the video is sold at overseas branches of Makita.

Warehouse burned down because of a compatible lithium ion battery → • 【閲覧注意】爆発したバッテリーが原因で火災が起こり僕の趣味を全部失いました
The National Institute of Technology and Evaluation (NITE) → https://www.nite.go.jp/jiko/chuikanki...

★ Products used in this video (includes an affiliate link)
Makita genuine battery 18 V https://amzn.to/3TkPogQ

00:00 Introduction
01:37 Disassemble Genuine Battery
04:05 Disassemble Compatible Battery (Company A)
07:45 Disassemble Compatible Battery (Company B)
10:14 Conclusion

■Business inquiries
denkiotaku@ichiken-engineering.com
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