How to fix or repair a Dyson V6 battery with red-light flashing: BMS replacement (with subtitles)

This is a summary video (with English subtitle) of how to fix or repair a #Dyson V6 #battery with red-light flashing more than 30 times and no charging any more. In this video, I tried to open the battery case without too much scratches, diagnosed the battery problem, purchased a replacement part (a third-party BMS-PCB from China), detached the faulty Dyson OEM PCB, soldered the replacement PCB, and finally reassembled the battery and applied to the Dyson V6 Cordless. The fix was successful and the replacement part works perfectly. I think the Dyson V6 BMS-PCB has some wrong (evil) design, otherwise it should work with any healthy battery cells. Now Dyson should #fix it.

Where to find the part? See https://drkimfixnsolve.tistory.com/73.

If you need more details, watch my series of how-to-fix-a-dyson-battery video #1-5 (Sorry, no subtitle yet).

0:00 Case open
1:34 Diagnosis
2:40 Replacement BMS
3:05 Detaching the faulty BMS
4:22 BMS comparison
4:40 Preparing the replacement BMS
5:44 Attaching the new BMS
6:48 Soldering the switch
7:07 Assembling the case
7:34 Charging and test

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*** If you feel it is dangerous, DO NOT OPEN the battery ***

(한국분들을 위한 메세지) 전체과정을 요약한 버젼을 올립니다. 급하신 분들은 참고하시고요, 자세한 과정은 긴 동영상을 보시면 되겠습니다.

다이슨 V6 교체배터리 수리 시리즈:
1탄: 다이슨 배터리 또 빨간불 고장 났어요~ https://youtu.be/3-o2Mj_kucU
2탄: 빨간불 다이슨 V6 대체 배터리 열고 점검하기 https://youtu.be/73D-ndDoW24
3탄: 다이슨 배터리 안전회로 팩키지 개봉기 https://youtu.be/YE5joM8ScV4
4탄 (완결): 다이슨 V6 배터리 빨간불 깜빡임 보호회로 교체해서 수리 https://youtu.be/xvLUOaC7E6A
쿠키: 다이슨 청소기 배터리 수리 도중 쇼트 (합선) 나서 불꽃 튀는 장면 https://youtu.be/3L9urvs_cLM

원조 빨간불 깜빡임 다이슨 V6 배터리 BMS-PCB 교체 자가 (DIY) 수리하기 시리즈:
인기 영어자막 요약본: https://youtu.be/wIQXNjNGVrk
5탄: 납땜 및 수리성공 https://youtu.be/Y2CsA5T5TPc
4탄: 기판분리 https://youtu.be/GfvOSTppl2g
3탄: 진단 및 부품확보 https://youtu.be/7AjyubywyzY
2탄: 간단 수리시도 및 실패 https://youtu.be/k_zGR_c3dgs
1탄: 스크래치 없이 열기 https://youtu.be/dOwLVAasKn8

For a detailed process, you can watch a long video.

Dyson V6 replacement battery repair series:
1st: Dyson battery has broken red again ~ https://youtu.be/3-o2Mj_kucU
Part 2: Open and check the red light Dyson V6 replacement battery https://youtu.be/73D-ndDoW24
3rd: Dyson battery safety circuit package opening machine https://youtu.be/YE5joM8ScV4
4th (Complete): Dyson V6 battery red light flashing protection circuit replacement and repair https://youtu.be/xvLUOaC7E6A
Cookies: A scene of a short (short circuit) sparkling while repairing a Dyson vacuum cleaner battery https://youtu.be/xvLUOaC7E6A

Original red light flashing Dyson V6 battery BMS-PCB replacement self repair (DIY) series:
Summary of popular English subtitles: https://youtu.be/wIQXNjNGVrk
5th: Soldering and repair success https://youtu.be/Y2CsA5T5TPc
4th: Substrate separation https://youtu.be/GfvOSTppl2g
3rd: Diagnosis and parts acquisition https://youtu.be/7AjyubywyzY
2nd: Simple repair attempt and failure https://youtu.be/k_zGR_c3dgs
Part 1: Open without scratch https://youtu.be/dOwLVAasKn8

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Blog (mostly Korean): https://drkimfixnsolve.tistory.com
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Видео How to fix or repair a Dyson V6 battery with red-light flashing: BMS replacement (with subtitles) канала 돋보기김선생 Fix n Solve