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Inflated / Swollen Lipo Battery Pack - Dangerous????
I recently found my Turnigy 1000mAh 3 Cell 11.1V Li-Po battery is inflated / swollen, as the picture attached shown.
Left: normal battery Right: swollen battery They are the same kind! By touching the surface, it feels resilient...It might be some gas trapped in there, might be something else. I noticed it after I took it off from my quad, so it was actually discharging normally. And the voltmeter reads normal value. Is this a normal phenomenon or a dangerous indication? If you have any clue or know any old discussion over this, please instruct/direct me! Thank you a lot! |
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Last edited by grantjerry; Jul 15, 2016 at 03:37 PM.
Reason: capitalize the title
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This is usually caused by discharging at too high a rate and it is evidence of battery damage. If you keep using it, keep an eye on the performance. This condition is not reversible.
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That advice goes for ALL Lipos. Never charge unattended - and invest in a fire resistant container.
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Swelling is sometimes called puffing. A Search for puffing in this Forum gives about 600 threads. Very common and something you should become educated on. A good read on Lipo battery care is here: http://www.tjinguytech.com/charging-how-tos
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Even I do so, tho, in lower current draw models to make most of them. I still use few slightly puffed up packs which are 6-7 years old, still serving the purpose.
I also know someone who got his way of treating it, "tho I definitely wouldn't recommend anyone doing it!!!!" He said to me that he punched a little hole in the swollen pack and put it in the vice to squize it out! Oughch!!!! |
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