There's a pretty amazing video where a guy makes an entire functioning e-bike battery out of disposable vapes that he gathered around a music festival. https://www.youtube.com/watch?v=VcVp9T8f_W4

I can't fathom why disposables are legal. Really believed that the post-boomer generations actually gave a damn about waste.

There was a bit of discussion about that Frankenstein last year (it was a protest of sorts): https://news.ycombinator.com/item?id=42045621

They’re already illegal in places, eg UK

I like to start doing like this, but as you can see I'm like most people here don't have experience on electrical or electronic equipment

do you have an idea where I can start doing shit like this??? not up to professional of course but as a hobby where I don't need to electrocute myself would be nice

Building an e-bike battery from some random trash is a terrible idea. You won't electrocute yourself, but you are very likely to burn down your house when one of these cells randomly decides to ignite.