I have a tugboat v2 with matching rda. I jave ran into a couple concerns. First my firing button and bottom area of rda get hot when vaping. Any idea as to why this could be? And the second, my batteries drain soo fast. Went through 2 batteries in an 8 hour shift at work. I vaped omw to work. A little on my 3 breaks but not much. And by the time i was headed home they were both dead and both started with 4.2 charge. Idk what it could be. Hope someone has some helpful advice