Opinion on Battery Bulge

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The battery in the center of the two pictures is the one I am concerned about. The other two small sides of this battery are not bulging. It is not a DJI battery as you can tell. Not very old not very many hours or recharges on it. Never been dropped. By me anyway :pI have never had a battery bulge on any of my 6 or 7 drones.

Is this battery a concern at this point?

Thanks
IMG_20210108_150232.jpg
IMG_20210108_150428.jpg
 

ianzone

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I would not use it,there's a chance it wont release from battery box when hot due to more swelling and asking for a fire,might be ok for testing something but I wouldn't fly it,,its at the risky stage when swollen because gas has escaped,,,,if its puffy and soft its had it and not worth risking a crash or onboard fire
 
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I would not use it,there's a chance it wont release from battery box when hot due to more swelling and asking for a fire,might be ok for testing something but I wouldn't fly it,,its at the risky stage when swollen because gas has escaped,,,,if its puffy and soft its had it and not worth risking a crash or onboard fire
Thanks, Appreciate that info.
 
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I would keep it as a last resort back up, say if you've used your others but still need to clinch that final bit of video or photo. Once lipo's start selling it is definitely a sign that are past there best and care should be taken. To be honest I'd probably discard it.
 
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My understanding is that once a battery bulges, it could go off like a hand grenade pretty much without warning. I'd get rid of it in a safe manner. If you live out in the sticks, a decent burial might be in order
 

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