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2022_06_21_lipo_swelling.md 1.0KB

title: Blog post: Close call while charging a LiPo description: Swelling ruptured the battery casing date: 2022-06-21

comments: true

Today I had an eye-opening incident while charging a LiPo battery. It was an SLS Quantum 4S 1500mAh 65C from StefansLipoShop, but they no longer seem to sell this exact type.

As usual I charged it using my iSDT D2 smart charger. I heard a strange popping noise and was not sure at first what caused it. Then I saw this hanging from the charger.

I immediately unplugged it and put it outside on the balcony. The cells were noticably hot to the touch. If I hadn’t noticed anything I think the charger would have happily continued until a more catastrophic failure would have happened.

After building nicer storage boxes for my batteries I’m now thinking about only charging in a can as well!