Angel,
The Kanger ProTank II is 510 threaded, meaning it will fit the EGO/CE4/CE5 batteries. Whether battery life will be as you want or not... You might not be pleased with the diameter change from the
tank to the battery (battery smaller than tank), but it will work.
My own experience is that the CE4 and CE5 clearomizer
tanks are compatible with every battery I've run across so far. Longer using friends have upgraded from the typical "starter kits" to some rather interesting versions, all with longer battery life and other niceties that I, too, will be moving to. But in the mean time... I've had to borrow a battery on occasion because I forgot my second, or didn't bring my charger for a quick re-charge.
49 Days, no carcinogens since walking out of the store with my CE4.