I ordered a Lava Tube june yen or whatever back the end of Oct. Right out of the box I had problems. Threads on the top suck, has to be the cheapest thread cutting I have ever seen. Problems reading the display. Contacted Better Vapes and was told I needed to try a different tank/carto which I never received. So i put it up for a while and didnt use it. When i pulled it back out and put a fresh charged battery in, it was worse. Now when I push the fire button the voltage drops by .1. The light stays on in the display and I continue to get this .1 drop every time I push the fire button. I have sent emails but never hear back form them. My take on this is 1 Dont buy from Better Vapes as there customer service sucks. 2 As I have heard there is a new lava june whatever model out. This one is suppose to fix many of the problem they had with previous models. Well if they knew there are problems with previous models, why are they not replacing those PV's with there new models. Are the customers with the junk ones just suppose to use those for paper weights?