So, the title basically says it.
After over a year of vaping and having to retire some old batteries, and buying new ones, I have decided that I really need to keep track of how I rotate batteries. I tried numbering them with a sharpie and charging in numerical order but the ink comes off after a little juice gets on a battery or from handling.
So....How does everyone mark their batteries in order to charge them in proper rotation?
After over a year of vaping and having to retire some old batteries, and buying new ones, I have decided that I really need to keep track of how I rotate batteries. I tried numbering them with a sharpie and charging in numerical order but the ink comes off after a little juice gets on a battery or from handling.
So....How does everyone mark their batteries in order to charge them in proper rotation?