I have an iJust 2 tank and I was told the tank is compatible with many of the pen batteries because of it 510 threading. I'm thinking I was told wrong. Every time I put the tank on a different pen type battery it burns out the battery. Just a quick little pop and the battery is history. I've ruined 2 kanger tc mega batteries this way. I should have learned the first time that the info I got was wrong. At this point, I'm wondering if there is something wrong with the ileaf 2 tank itself to cause batteries to short out. Any help would be appreciated.