it's waffer-thin.™ is a user on cybre.space. You can follow them or interact with them if you have an account anywhere in the fediverse.
Check out these sweet old batteries I found inside a medical device today.
True to their word, they haven't leaked. They must be >30 years old.
9 Lives!
@wohali pretty! any idea what the chemistry is?
@bootjack Given it's from Union Carbide, my guess would be early manganese dioxide/zinc alkaline. But it's possible that it's zinc-carbon I guess? dunno.