Ok I have been vaping for almost 2 weeks now, i must say I LOVE IT, i havent had a craving (i was a dipper) in the time i have been vaping. I want the best and from what I am hearing provari is the best, sell me on it, explain to me what i need, what is so good about it all that good stuff. Im assuming it has a battery not a internal one but one you can change out. Also whats the deal with the cartomizer's? Is that the coil? ProVari Variable Voltage Electronic Cigarette# thats what I am looking at, whats the max voltage it can go up to, right now I am currently using a ego c twist which goes up to 4.8v and i have the kanger evod with the 1.8 ohm coil in it. Sell me on why i should spend 160$ and what else i need with it....readddddy GOOOOOO