One of my 510 atomizer is overheating and creates poor vapor. I take a normal, slow puff and the atomizer is instantly hot. I think I may have fried it: I have manual batteries and 2 days ago I accidently activated the button for many seconds. In fact It stayed activated until the atomizer nearly burn me. I have 2 atomizers. I am quite sure it is this one that is now overheating. Anybody have other overheating atomizer stories ?