Sounds like a mix of truth and fiction, except for 10ml being equal to a carton of cigs. Then again, who knows? What is it equivalent to? I don't even know.But a carto can last 2 months for light vaping. I used the same 2 coils on a Vivi Nova for about 9 months! In my experience, Vivi Novas do leak onto the battery, and into the mouth piece. I'm sure not all do, but it's true for some. It would be easier to say a 650 lasts 6.5 hours but for a light user that's enough to get through the day. Most people would need 1100 or more. Some ego batteries will last a while, others are lemons. Stores aren't always the best place to get info but for anyone totally clueless it's a start that will send them searching for more info.
Here is a good starting point to get an idea of equivalency..
http://www.e-cigarette-forum.com/fo...ette-vs-e-cigarette-nicotine-equivalency.html