this post was submitted on 01 May 2025
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What is this thing?
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Let us help you identify that mysterious object you’ve found.
Currently in CHALLENGE mode: If you've got something obscure knocking about, post a picture, and let's see how we do. Please prefix such posts with "CHALLENGE:" so we know we've got a fighting chance.
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Looks like a PJ996 lantern battery whose top cover broke off. It's probably carbon-zinc, in which case you can recover a decently big graphite rod from each cell.
I'd warn against opening the cells if you don't know how old it is. Modern ones are safe, older ones might contain heavy metals.
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Manganese :)
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