A question for you battery experts... I have 16340 and 17335 batteries that I have been using for several months. After noticing that I wasn't getting much vapor even when the batteries were reading around 3.9 volts, I hooked up the multimeter while using them. What I found is that when charged to 4.1 volts they read around 3.7 when vaping. But from 3.9 volts they drop to around 3.2v under load. No great vapor at 3.2v!
Is this the sign of batteries going bad?
Is this the sign of batteries going bad?