And here is the announcement you have all been waiting for. MY BATTERIES HAVE DIED! So we will call it a little over 10ml or almost 4 days.
But something starnged happened. The voltage did not seem regulated at the very end. The blue light was going on kind of. There seemed to be a red and blue light at the same time when the button was pushed, and vapor was being produced, but the TH was next to nothing. I took several vapes with the same result. I thought there might be something wrong with the carto as with the other batteries when they died nothing happened and even if the red light was on, with the other bats when I vaped there would be no light. So I changed to my other tank and got the same result. I tried turning the voltage all the way, this just produced less vapor. At this point it occured to me that the batteries can't last forever so I changed them and everything went back to working fine!