I'm looking for a mod with an internal battery that can pull 40 watts ,and supports stainless coils in tc mode ,i will settle for 30-35 watts if need be.the problem is I love my uwell crown2 too much to go back to another tank,i plan on picking up at least two more,next month,and while my batts are charging i cannot run tc on my istick 40 watt tc because ...no nickel coils!i do not want to go back to kanger tanks/coils.the crown coils are way easier on my pocket book.and so is the price on the crown 2 tank!thanks in advance!