I'm definitively not the most qualified person I know to talk about this, but from anecdotal experience:
- many serious projects use tons of AA (or C, or D) batteries in packs, this approach isn't as ghetto as it sounds. quick googling yields
http://www.batteryspace.com/index.asp?PageAction=VIEWCATS&Category=258 as one possible place to source some premade packs
- many electronics that take "wall" power (eg. 120VAC) can accept anywhere from about 90-240V, due to the nature off the rectifier inside, but don't take my word for it, research before you break something
- anything that runs of 12VDC (PD?) with low current draw should be able to use something like an alarm battery or car battery for a pretty long time (car batteries, or any large lead acid batt, are pretty serious).
- However, if you end up going with car-type battery, two things: 1) get a sealed battery, so that acid doesn't leak out. 2) try and avoid "cranking" or shallow cycle batteries and instead get deep cycle batteries (you might find these for applications like powering a golf cart/trolling motor on a boat) since these are designed to provide power over longer periods of time, as opposed to a burst of high current
- keep in mind that if you run a vape that isn't controlled by a thermocouple or some other type of closed-loop feedback (eg. a Vaporbrothers or PD versus an Aromed or Volcano Digit) of off a battery and end up under or overvolting it, assuming you don't break it (and you probably won't) you may end up having to recalibrate and use a different knob position. I can't speak for how well the PD handles undervolting since it has no adjustment
- if you end up getting an inverter for your car outlet, see if you can get a model with no fans or quiet fans, fan noise can be pretty annoying when you are trying to vape in peace. that being said i have used car inverters to great effect with the VB
- it may seem pretty obvious to many but if your vape in the end (eg. after "wall warts"/transformers) uses DC power, this is probably going to be easier to supply on the go than the same wall power (eg. using an alternator) you make use of at home
my