Hi I recently purchased a Tesla V2 Parallel box mod with USA mosfet... I use an arctic tank with .2 ohm coils and I want to buy new batteries for it. The batteries I have been using are the standard 18650s from my Vamo that I used with a viv nova at 1.8 ohm..What type of batteries should I get??? The ones I have hit good for the first few puffs then die off pretty quick I want to upgrade but don't want to get the wrong ones and blow my face off lol....any advice would be appreciated as I am new to sub ohming////vaping since 12-21-12