0.18gms per bowl. That's about 15 minutes each. Four of those. So about an hour of running time. A little less, probably.
I forgot to mention, I didn't want to run the batteries down to zero. So I used it down to one bar. I was just doing a preliminary test to see what would happen. And I'm slowly puffing away. I could get a lot more sessions if I went faster. Plus, it also depends on ambient temp.; temperature setting.
Anyways, I think this thing is amazing. Different strains want their own temp. I always thought bongs were too fast and furious, like a toilet. You can savor every aspect of the bud this way.
I converted to vaping from combusting overnight about 3-1/2 years ago and have had 4 different vapes now. I am continually surprised by my own fickle/changing behaviors and the methods, temps., the water, all these variables, and what I'm finding is that change alone is something that enhances the whole experience.
A swift kick high temp. from a Grasshopper thru water can be very effective very quickly (approaching bong-like intensity), then the next day all nice lower temp. sessions with Mighty seems the best of all possible worlds. That's not to say Mighty can't do big rips; it certainly can!
Beside the Mighty itself and the experience of vaping, are you noticing now more of the subtleties of vape effects as compared to combustion effects? This is a ride worthy of the long haul, imo!
For your extended travel away from power source, and ease of travel, the dosing caps are great. I would think you'd want to finish a bowl a little quicker, to conserve battery. On average, you can vape at least one magazine (8 caps ) from a charge. They just seem to extract a little faster and a little more thoroughly. Some have likened their use to pure convection vaping. And take a look at that Anti-Gravity Micro Start -
@t-dub shows one a few posts up. The Model XP-1 comes with a cord/plug that fits Mighty; you'll get multiple full charges. Granted, a little heavy, depending...