Best USB passthrough home vaping experience?

[xKrazYx]

Hi, I have a Pilot and NPRO and I like both very much, but when i'm at home and on the computer, it'd be nice not to worry about battery charging and whatnot, and I bought the NPRO and Pilot mainly based on looks, so while i'm at home playing DOTA or watching a movie on my computer, i'd like to have a USB passthrough to just puff at.

My question is this: without regards to looks, what is the best performing USB passthrough battery/atomiser combination?

Thanks for any input!