hi. . Im new to vape. .. Its been about 2 weeks since i had last cigarette.. I ordered e liquids from couple of vendors here.. I bought 2 ego type batteries one from joyetech 1000mah not sure of brand name and 1100mah with 2 vivi nova tanks.. One tank i have 2.4ohms. . Other i changed 2.4 to 1.8 and now i have 2.8ohms. i thought 1.8 ohms produce more vapor. . 1.8 is not making more vapor than 2.8.. Did i mess up on something?? What batteries do u guy recommend for vivi nova tanks? not too expensive and will last.. Thanks for ur help