So I have an ego x2 at the moment that I'm using with my Kanger Protank 3.0. Today when the battery died I plugged it into the charger and noticed a funny smell after a couple minutes. Low and behold, the charger was smoking and had burned through the plastic. The battery wasn't overheated at all but now I can't charge the battery without that one charger overheating. I tried another charger and although it turned red, never charged. Could this have something to do with the center pin?