Grab yourself a P16A Starter Kit by JustFog. Although it's small, you'll be amazed at it's power. Souped up with all kinds of safety features. Possess the pass-through function which ,in turn, allows you to use the electric cigarette while loading. The included battery lets you toggle between 3.4~4.2 V(3 levels). You know when hot e-juice burns your mouth? Not with this , thanks to the Star Shield System. (This system ensures that no liquid can splash and get into your mouth.) Good e-cig for lightweight/travel use.