Spoiler: It's nowhere near 9,000,000mAh!
Leaky batteries are all too common a problem. Here's how to clean up following a leak, and some tips on how to prevent batteries from leaking in the first place.
Yes, these have definitely released the schmoo! My best guess is that they were discharged and then left in that state for quite some time.
These batteries are in a cheap LED lantern, which is nice enough to save, but I'd probably put more effort into the clean up if this was something more expensive, like a computer mouse or a remote control.
Caption by: Adrian Kingsley-Hughes
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