I recently bought the new Itaste (from Innokin I think) MVP 3.0 and LOVE it! It holds a 3800 Mah charge and that lasts me (I'm a heavy vapor too) 2 to 21/2 days. It comes with a 510 port that is spring loaded to push the middle up into 510 threaded hardware and it also comes with a screw in 510 to EGO adapter. This thing has a huge range of ohms and watts and vapes great. It even has a built in cord in the bottom that you can use to charge mini USB items. This thing has just blown me away. One caveat, Search for the best price. I found 1 on Ebay for $66.00, but the price range wherever you go, so look around until you find a good price.
