this post was submitted on 25 Mar 2024
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Reusing vape batteries in flash lights? Is this a crazy idea. (lemmy.world)
submitted 7 months ago by Cheese@lemmy.world to c/flashlight@lemmy.world
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So people throw out disposable vapes all the time. I cracked one open to take a look and it turns out they have a 18500 battery in it. So I was thinking of 3D printing a spacer to make it the same size as a 18650 and putting some shrink wrap on them. I just wanted to see what people who know more than me think. Is this a bad idea that is going to burn my house down? a waste of time perhaps?

I did a trial run in my wurkkos fc11 and they seem to work, it charges and looks just as bright.

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[–] Nawor3565@lemmy.blahaj.zone 4 points 7 months ago

Should work fine. 18500 batteries have the same specifications as 18650s except for, of course, a smaller physical size and so a smaller capacity to go with it. Other than that, you should be able to treat them more or less identically to a normal 18650.