Well, as I stated earlier, I am using an AW IMR. It is the batteries that are designed for the Provari. I don't see how I could be pulling more voltage out of the battery than what the Provari will allow. It is a 2.5ohm dialed into 5 volts. It does not happen while I am taking a drag or anything. Just some time throughout the day it will start blinking. If I pull the battery out then put it back in and read the voltage it is still within reason, most of the time right around 3.7 volts. One time I checked it and it read 3.3v, I took it out, put it back in and it was reading 3.6v. I going to assume it is the battery. I have been using it non stop since I got the Provari and I do not really use any other one except on weekends where I vape longer.