General > General Technical Chat

Don't keep fully charged Li-Ion in long term storage, they tend to bulge

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magic:
To be fair, I always thought that continuing to use already failing Li-ion batteries is a bit nuts, but I'm curious how nuts it is exactly because there doesn't seem to be much reliable information on that ;)


As for the rest, it's just your typical American leftoid behavior. Hiding posts of such users would deprive me of some entertainment.

tom66:
How did Li-Po cells turn into politics?   |O

Before a Li-Po cell fails explosively (e.g. due to overcharge) it tends to bulge up in much the same manner.  I would not be surprised to see these batteries burst and burn, but maybe it turns out that the slower version of this process results in a bad cell, but not an exploding cell.  I'd still argue it's way more of a hazard than a normal cell, and I can't blame a repair shop for not wanting to be involved.

tooki:

--- Quote from: RoGeorge on January 19, 2023, 09:37:03 am ---
--- Quote from: tooki on January 19, 2023, 07:42:00 am ---(I assume enough intelligence on the part of our readers to understand that this means the correct bin for the item being disposed of. …ok, fair enough, given that this dude wants to reuse it, it probably does need to be stated explicitly!) Put used batteries into the battery recycling bin.

--- End quote ---

Would you kindly fuck off?
Hold your innuendos for yourself.

--- End quote ---
If it looks like a duck and quacks like a duck…


--- Quote from: RoGeorge on January 19, 2023, 09:37:03 am ---You are on my ignored users list.

--- End quote ---
::tiny violins:: 🎻 🎻 🎻

tooki:

--- Quote from: tom66 on January 19, 2023, 10:37:16 am ---How did Li-Po cells turn into politics?   |O

--- End quote ---
Well, in reality, it didn’t, other than one cryptic, nonsensical remark by magic.

james_s:

--- Quote from: tom66 on January 19, 2023, 10:37:16 am ---How did Li-Po cells turn into politics?   |O

Before a Li-Po cell fails explosively (e.g. due to overcharge) it tends to bulge up in much the same manner.  I would not be surprised to see these batteries burst and burn, but maybe it turns out that the slower version of this process results in a bad cell, but not an exploding cell.  I'd still argue it's way more of a hazard than a normal cell, and I can't blame a repair shop for not wanting to be involved.

--- End quote ---

Overcharged cells will puff up before they burn, but it's also common for cells to puff up due to normal wear and degradation. Lots of guys keep flying slightly puffed cells, haven't seen one burn up yet, so it's not necessarily dangerous, but a puffed cell is definitely not going to perform like new either. If it is severely puffed I would discharge and dispose of it.

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