So I got a Vamo v5. When I put my tank and I tried a bunch on a certain point it says low v. It wont turn on without a topper and it displays 9.9. I sent it back and when it got to the company it apparently worked. I saw a video of it working it wasnt doing the same thing. So what am I, stupid? Why do my toppers make low v and it wont turn on and so forth then when it gets to the company its fine. Im so upset I have had to send it out twice and apparently it worked so what am I doing wrong when I screw my tank on or press the button to turn it on it makes no sence.