When folks dismiss Nucks advice wrt safety, it just gets my polar bear nickers in a twist. By what you have described and Nucks prognosis it does seem you have an intermittent short eg the center post is not aligned. A battery = less then a carton of cigarettes. I just wish folks would not be so stingy when it comes to safety. TOSS IT.
You did the right thing posting about it. You received solid advice. Now do something about it. Jack would replace that battery in a heart beat. just sayin... But Rainbowvapers??? Let it be a lesson learned and please do not become a casualty of frugality.
+100 .. More than agreed, I would suggest you listen to Nuck and Switched's words here guys. These batteries are not to be torn apart or played with and need to be properly disposed of if malfunctioning in this way.