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I'd be interested to find out how many of these bloated batteries still have any charge. Internal discharge feels like a pretty nice accidental safety feature,

I'd be interested to find out how many of these bloated batteries still have any charge. Internal discharge feels like a pretty nice accidental safety feature, albeit at the price of also killing a lot of old devices. But yeah, preemptively removing batteries for safety is a good move.

avar 3y ago
It's less dangerous, but some of the flammability is inherent in the chemicals withing the battery, and how they'll react to oxygen or water. Let's say that you were able to magically disassemble a cellphone battery into its constituent elements and compounds, made rods out of each, and then sealed each rod in a zip-lock bag in a vacuum chamber. The resulting collection of zip-lock bags is still something you wouldn't want to keep on a shelf somewhere, e.g. https://youtu.be/Vxqe_ZOwsHs https://youtu.be/Vxqe_ZOwsHs shows how elemental lithium reacts.