Good opportunity to mention this niche subreddit: https://www.reddit.com/r/spicypillows/. I'm guessing her old battery wasn't spicy enough to merit a picture, the one pictured looks fine.
If you stop using them they shouldn't. The swelling is to reduce the pressure to make a fire less likely. I think that if a swollen battery is disconnected, self-discharge should eventually drain enough energy that it's safeish
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Good opportunity to mention this niche subreddit: https://www.reddit.com/r/spicypillows/. I'm guessing her old battery wasn't spicy enough to merit a picture, the one pictured looks fine.
How often do swollen batteries lead to ... violent exothermic reactions?
If you stop using them they shouldn't. The swelling is to reduce the pressure to make a fire less likely. I think that if a swollen battery is disconnected, self-discharge should eventually drain enough energy that it's safeish