Recycling the batteries in disposed of single use vape devices

Finding several discarded single use vape devices, I opened one to see how it worked. Imagine my surprise when I discovered theu used a battery and noot only that, a RECHARGEABLE battery no less. Checking the battery's charge, I found it nearly full and it would indeed take a charge from a small lithium battery charger. I experimented and found the battery could be used for many projects, including a torch, a radio and many more. This video shows how to take one of these devices apart and to safely rescue the battery. It also shows a rechargeble torch I made several of, built using the battery and a small charger PCB.