I have 10 LG HG2 batteries that I rotate through my various single-cell regulated mods. I rewrap them as needed, so they all are in cosmetically good shape. I haven’t noticed any problems with performance on any of them, but I don’t pay particular attention to how much vape time I’m getting before I change batteries. The thing is, some of them have had three years of use, but I have no idea which. (Next time I purchase batteries, I will remember to transfer the purchase date when I rewrap them.)
How would I know if any of them are approaching the end of their useful life? If any of them are, and I’m not aware, are they potentially dangerous?
Thanks in advance for your thoughts.