I'm a total chain vaper - I keep this thing in my mouth all day like it's a pacifier. I'm running it with 3 kayfun clones I switch around all day to change flavors, all with 2 ohm coils (10 wraps of 28awg on a 3/32 bit) and keep the Provari at 4.6 volts (so about 10.5 watts). Typically, I put in a fresh 18490 either right before I go to bed or when I get up in the morning when it gives me the low battery warning, and I have to swap the battery during the day at some point as well. So with 2 of them, I can vape roughly from 8am to 1am every day. I didn't notice a big enough difference with the 18650 to call it significant. I do carry one with me just in case (I only have the two 490s), but I haven't had to break it out yet.
The AW 18490s last longer than the Sony VTC5s did in my eVic.
