Hi Skizif,
I really like it a lot. It's my all day runner arounder..LOL I live in the backwoods and I'm in to more greasy grimy junk than you would want to know. Goes with me on the tractor, in the Jeep, in the woods, you name it, it goes. Been very dependable and I get a good 5 or 6 hours on the battery. My T3's fit but can't answer the EVOD's question. My wife's Mini Vivi's work great on it too. I use the 3.5 Vivi Nova on mine all day. Most all 510 or joyetech threaded devices should work on it.
It's called a Joyetech Mini Mod Tube for 18350, they make it for 18650's too.















