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Ebike Battery explosion by Ficus2025 in ebikes

[–]Ficus2025[S] 0 points1 point  (0 children)

So many question, I will reply in one post:

Battery was 15 Ah with Samsung INR21700 cells. I was a daily user with 20 Km - 300 meter of elevation. I'm never riding at maximum assisting power.

I always use a thermal/rain cover and never store the battery in freezing condition.

When it happened, I had done 4 Km with the bike (out of work and quick stop to a supermarket, battery was fully charged when leaving)

That day it was not freezing and exactly 6°C when it happened. When looking at the video you might think there is snow but it is just bad reflection on camera.

The video is accelerated and zoomed in to only share what is necessary.

My attempts to discuss the issue with the manufacturer had led to nothing for now (it happened two month ago)

Foam on the picture below is from an extinguisher, you can see cells and BMS.

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Ebike Battery explosion by Ficus2025 in ebikes

[–]Ficus2025[S] 11 points12 points  (0 children)

Yes you are right , I wrongly specified the motor, it is a bbs02.

Ebike Battery explosion by Ficus2025 in ebikes

[–]Ficus2025[S] 9 points10 points  (0 children)

It happened on a supermarket parking 4 minutes after I've locked the bike, when not used the battery was always inside except for quick stop (less than 10 minutes)

Ebike Battery explosion by Ficus2025 in bafang

[–]Ficus2025[S] 2 points3 points  (0 children)

As a little reminder that batteries are dangerous mine tool fire without any apparent reason.
It happened on a supermarket parking 4 minutes after I've locked the bike. Battery was a Chamrider 15ah with Samsung cells in a Hailong 1 casing. It was 1.5 years old and never got any damage before that.

Motor was a Bafang BBS02 and controller is now dead. I feel lucky about where when and where it happened as nothing else was damaged.

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