I have been waiting for this MOD since way before Christmas and when MY VAPOR STORE had them back in stock I just had to have it. So pulled the trigger as they say around here an ordered it. MVS is a very good vendor and I got My Antvape CVI in three days which was awesome. I also ordered a 18350 tube so I could use it as a mini. The first day I got this MOD I threw in a 18650 battery and started vaping, my RBA's my vivi's my cartto tanks, even my ce4's and life was good. I ran the battery down to around 3.5 and thought it was time to change the battery to charge it. Well charger is full but I have this 18350 tube and charged batteries so lets try it. Worked great. Wore that battery down changed tube back to 18650 and nothing. No power what so ever. Put 18350 back on works fine. This went on for an hour or so back and forth. Then as I'm am trying to fig. what was wrong I was looking at my e-vic . They look like about the same size tubes so I switched battery tubes with each other and they worked fine. what is up with that? It does not end there. I just switched them back to the right MOD's today and everything works great. What is up with that. It just blows my mind. I even went as far as ordering a chrome tube kit for my E-EVIC cuz the Blue battiery tube just wasn't getting it. Sorry this thread was so long but it just was way to bazziar. Anybody else had this problem with the ANYVAPE CVI?