Ryobi 40v 6ah lithium battery repair - combined fix info from many YouTube videos into 1 summary

Lithium batteries can be very dangerous. Never charge them in your home. Always charge outside away from anything else. Do not tear them apart or do anything that I’m doing or talk about in this video. I did this at my own risk as should you. This is a video of combined info discovered from many other RUclips videos.