flashlight

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Reusing vape batteries in flash lights? Is this a crazy idea. (self.flashlight)

submitted 7 months ago by Cheese to c/flashlight

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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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[–] Docus 4 points 7 months ago* (last edited 7 months ago)

Rubbish. Many high performance flashlights won’t even work properly with protected cells, they need more amps and trip the protection. Unprotected cells are perfectly fine providing you use a proper charger and don’t short circuit them. That is assuming you use good quality cells, I would not trust what is in a disposable vape.