So i just bought 2 new kangertech subox minis and they both have the same problem. When there is a battery and the tank is fully in it wont turn on, charge, anything. Then when theres no battery and the the tanks fully in it still wont charge, turn on, anything. The only time it turns on and says its charging is when the tank is almost all the way screwed out with no battery. But then if i screw the tank in or put the battery in it automatically shuts off. Ive searched everywhere and it seems like no one else has this problem. And i have checked them they are real ones.