this post was submitted on 22 Dec 2023
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Single-use e-cigarettes contain batteries that last hundreds of cycles despite being discarded (techxplore.com)
submitted 10 months ago by [email protected] to c/technology
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[โ€“] [email protected] 17 points 10 months ago (1 children)

Turn them into a power bank, among other things.

[โ€“] [email protected] 4 points 10 months ago* (last edited 10 months ago) (1 children)

futuristic caltrops

I am dying... ๐Ÿคฃ

Also they all have to be 0.1 v from each other otherwise the "whole thing goes south" sounds scary and is now kind of making me rethink my plan of putting up collection boxes outside of high schools and building a battery for my house out of them.

[โ€“] [email protected] 6 points 10 months ago* (last edited 10 months ago) (1 children)

Once it's balanced and wired it's impossible to be imbalanced again though. The risk is only during initial assembly and you accidentally includes an empty cells among fully charged cells.

building a battery for my house

Uh yeah that's totally different league than building a power bank though.

[โ€“] adrian783 4 points 10 months ago

this is only true if they're 1s. but all bets are off if you have cell groups. God forbid you use them to make anything remotely useful like an ebike battery or home power storage.