Good god, 1 year into vaping, I've gone through multiple spinner batteries, davide tanks, kanger tanks. In the last 3 months, a sigelei 100w, a fogger 4.1 and a fogger big, and a smok m50 mod. Now a sig 100+ and another fogger big. More batteries too! Have to buy 4 batteries every time I buy a sig.... I still want the sig 150. I'm on a fixed income jeez! Also the smok has upgraded to the m65, for the single battery version. I spent less on tobacco! Of course I feel a hell of a lot better now, 40 years of smoking is bad..... still I wish I knew what eating was like....