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add swollen lipo blog post

Thomas Buck 2 роки тому
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+title: Blog
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+post: Close call while charging a LiPo
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+description: Swelling ruptured the battery casing
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+date: 2022-06-21
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+comments: true
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+---
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+
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+Today I had an eye-opening incident while charging a LiPo battery.
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+It was an SLS Quantum 4S 1500mAh 65C from [StefansLipoShop](https://www.stefansliposhop.de/), but they no longer seem to sell this exact type.
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+
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+As usual I charged it using my [iSDT D2 smart charger](https://www.isdt.co/d2.html?lang=en).
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+I heard a strange popping noise and was not sure at first what caused it.
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+Then I saw this hanging from the charger.
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+
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+<!--%
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+lightgallery([
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+    [ "img/swollen_lipo.jpg", "Photo of 'exploded' battery" ],
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+])
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+%-->
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+
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+I immediately unplugged it and put it outside on the balcony.
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+The cells were noticably hot to the touch.
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+If I hadn't noticed anything I think the charger would have happily continued until a more catastrophic failure would have happened.
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+
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+After building nicer [storage boxes for my batteries](rc_equipment.html#can_storage) I'm now thinking about only charging in a can as well!

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