Hello, so I recently posted something on here and I'm basicialy going to reword it so I get more information hopefully... I am looking for a Box Mod that will last me a long time as far as months/years go AND (very important) does not drain batteries really fast... Now what I would prefer is a single 18650 mod such as the IPV V2 Mini that I saw... It goes up to 70 watts which is all I need and is cheap and has USB Charging (which I currently use) In a perfect world, I would get a mod like that (or a similar one) and still get at least a few hours of battery life while chain Vaping on and off for those few hours at say about 30 watts and using my Atlantis V2 Tank... I already have 2 18650 batteries but they are different and I don't wanna sound like a cheapskate but not only would it be a lot more expensive to go with a dual 18650 model, there is no USB charging on most of them that I've seen, which would be a bummer for me... I know it's not too much trouble to simply plug in some batteries, and once I got setup I would be completely set, but I would prefer a mod with the USB charging option, and like I said mabey one that takes one battery, since I also have a backup and the one battery chargers are like $8 so I would be able to always have a battery ready for the mod... But I REALLY don't wanna spend money on any mod like I did with my current one (Smok Xpro M65) and sit around waiting for it to charge more than I even Vape! Yes that is literally what happens... For example when I got Home from work around 10 tonight it was on 100%, I Vaped it at only 30.0 watts until about 11, and it dropped to about 40% battery life and it is now 1:25 and it is still charging up (UGH) and if i take it off the charger at say 50% battery life, forget it! I get 10 minutes of Vaping, mabey 20 if I'm lucky! Yes I do chain Vape and I know .3 ohm coils on my Atlantis V2 Tank probably stretching the limits of my mod, so my question is what mods would you recommend for best battery life (and of course performance when used with sub ohm tanks, and only those I will not be going to rdas) yes I will take dual battery suggestions of course but like I said if there's any way I can go with a 1 battery model (such as the IPV V2 Mini) and still get at least like 3-5 Hours of battery life from a full charge with the way my Tank is set up I will definetly be down for that! Thanks for your suggestions!