Reply to Holman;Ipster,
The part where you said 3.7. Volts is about normal for slow flash. That part I don't agree with. 3.7 Volts is on the not too low side of median charge range.
Anyway you said something in this post that I wanted to comment on. The button light set to off the extra power conservation should be so small as to be not even measureable in respect to vape time. The button LED is probably pulling 5 ~ 10 mA. So if you are using (for example) 4.0 volts and a coil at 2.5 Ohms for a total battery current draw of 1.6 Amps. With the LED on it would be a total draw on the battery of 1.610 Amp. The LED alone would need to be fired 160 times to account for one normal coil firings with the LED off. Anyway enough of that.
What you said about the Slow Flash starting at different points with different batteries. I made a post about that as a possibility but I didn't make it all that clear and someone replied about different ratings on batteries, well that was not the point I was trying to make. What I should have said is that depending on the age, usage level or how hard you are drawing on the battery i.e. the voltage you are applying to a particular coil. All of these things can effect the current state of the batteries internal resistance which I believe can significantly effect the voltage level the battery indictor starts to flash at.
In your post you didn't say what the other batteries types and "Usage Age" are. Are they all AW IMRs? If not that could explain the variations you are seeing. It is a very difficult thing to compare different batteries types and manufactures may all claim the same specs but that is not always a good indicator (maybe not totally truthful). (God this is getting confusing) But if you have some Batteries that Slow Flash at 3.2 ~ 3.3 you can bet your Provari is working just fine and the problem (or variation) you see with other batteries are the batteries themselves.
If this got too far out in left field just chalk it up to some whack-o and ignore it. I just get into "What is really going on" to the extreme.
Everything you stated- I have no arguement with. In fact...thats WHY I felt compelled to go back onto ECF and add another reply.
It wasnt long after quickly responding the first time "3.7..sounds about right'...I caught myself and thought; no it doesnt! that shouldve been more like 3.2!. So I started paying closer attention. Ofcourse the batts are different ages/usage..to many variables.
thanks for the details- this is what ECF is for. Clearly you have a wealth of knowledge in DC current variables. Admittedly, vapers come in all levels of knowledge, interest, experience. Im one that gets aggravated with myself when accidentally I realize a post presented wrong info to someone.