I built a USB power back using these cells a couple months ago after finding out that disposable vapes have rechargeable batteries. A friend had already taken t

I built a USB power back using these cells a couple months ago after finding out that disposable vapes have rechargeable batteries. A friend had already taken the cells out of several of his own vapes; I don't know how I'd feel about taking apart ones that I found on the street. http://robruark.com/projects/power_bank/power_bank.html http://robruark.com/projects/power_bank/power_bank.html