Madvapes is a good place to order. I've bought his 901 with the manual batteries a disposable 510 and the 510 with the mega batteries. He's a great person to deal with (Mark) you may get a free goodie with your order also. Had a problem with a battery on the 901 manual and he sent me a new one free of charge, his juice is pretty good too and very reasonable.
Welcome to MadVapes LLC
Welcome to MadVapes LLC