6 days. One of my batteries out of my first kit wasn't working and I hadn't really planned on quitting right away. I just tried to keep it down to a dull roar until the second battery got here and I got some 24 mg. juice. (I had started with 18). I got the new battery fast and was down to that morning cigarette only, when I realized I just need to decide I wasn't going to smoke it, I knew I was one of those people that would be smoking it for the next 10 years if I let myself. I had a few cravings, but just vaped my head off after that. Now, I really don't even want a cigarette. I was cleaning out my car the other day and found a cigarette that I must have dropped. Still all clean and everything. It went in the trash and I didn't feel a thing. Think I knew then that I was really over smoking. You will get there. Figure out what's best for you, but don't let yourself get away with anything either. In other words, be reasonable, not ridiculous and it will come.