This is a little big but it is what I am using. I thought it might make a nice stealth
vape for the tool box with a little black paint. Bet the wife won't want it lol.
I even got it just about set up to take the battery in and out without opening the whole box. Lots of room for my DNA 30 to.

Barring disaster I think it might work out very well. I even got an 18650 2200mah in there.