I have an Ego-T battery that seems to be threaded incorrectly. When I screw any atty on all the way, the button cannot "face front" (by that I mean, for the mouth piece of the tank to be in my mouth the right way, the button has to be almost off to the side). This for some reason also leads to a strange whistling noise and a really horrid taste. The other battery I got in the kit doesn't do this. I read somewhere on here that loosening the atty would get rid of the weird whistling noise. I tried that, and it got rid of the whistle and the horrid taste. Does this mean the battery is threaded incorrectly? I'm ok with the atty being a little loose for it to work properly (I just hope I won't end up with a leak). Is this common for batteries to not fit properly, because I'm assuming the problem may be that this battery blocks the airflow when tightened all the way for some reason. Will leaving the battery slightly loosened hurt battery life or atty temperature/function? Thanks!