We have some Rev slim batteries, and they’re old. Some are struggling to make it a full build night before dying. I’d like to revive them. Various things online talk about NiMH batteries should just be ran down then charged back up again. I was pondering just building some contraption that has a ton of motors on it and set them to spin full speed until it dies, then charge it up again.
Anyone have better ideas on how to rejuvenate them (besides just buying new ones)?