Ok so originally I bought a generic ecig to start off it came with a no name clearo with a no name 650mah battery, after a couple weeks I stepped up to the kanger aero tank and bought a smoke tech vv winder 1100mah, and recently I have been getting bad vapor production and bad taste think it's been my attys or just the aerotank itself, so after vaping all day my battery dies early in the day with my winder so I pull my generic 650 battery out and put it on my aerotank and i am getting perfect flavorful vapes, it's blowing my mind how different it is compared to this last week of only using my winder, now I have tried ever single setting of voltage on my winder and I can't get it to even compare to how this generic battery is out performing it, am I doing something wrong or do you think I just got a crap winder, it's only a week old...