Macks sir, is the switch being sticky on that king diamond batt? There's a very quick fix if that's the issue.
Here's what happened. I attached a new Cool Cart and it worked perfectly for about four or five vapes, then suddenly it wouldn't turn on when I inhaled. I remembered reading another post somewhere about similar issues, so I tried blowing
through the LED end of the battery and it lit up instantly. I was then able to get another
vape or two in before it stopped working again, and noticed that if I quickly inhaled very hard once or twice it would kick in and work for another
vape or two.
I tried two different carts to be sure that wasn't the problem but it still occurred. The other Diamond I ordered works perfectly with those carts, so I assume either the sensor in the broken battery is damaged or it gets stuck closed.