Someone asked about the Vamo so am updating on it:
It works great with my 18650 battery but not at all with 18350. Both batteries are new and fully charged Trustfire 3.7v using the same 2.0-2.4 Boge carto. With the 18350, loosing the end cap will make it come on briefly but then it, evidentally, turns itself off with a dead screen and won't fire. Well, actually I used the 18650 before it was done charging because I wanted to see if it worked with it and it did without any problems and cap fully tightened down. I have posted on a Vamo thread so will see what is replied and I've contacted Bombvapor to see what they say. Will let you know.
I had a VAMO for a short time (too big/heavy for me) and it would not work with Ultrafire or Trustfire 18350 protected batteries. I got some IMR Efests and it worked fine. It also worked with protected Panasonic 18650's
It worked out for me because I got a mini Apollo VTube and an ego t/c 18350 mod and they both require the IMR batteries.

