Same as Dubs58 here, you sure it was the batt that got hot r77r7r? If so, I would say stop using that battery. An unregulated reaction in a battery like that is a bad thing, that's what causes all those "exploding" cel phone and laptop vids on youtube.
Might want to let the vendor know so he could raise a flag with the OEM. The last thing we need is an "exploding
ecig" video on youtube. That will give the money powers all the fuel they need to get their lackeys to start banning our PVs. I can see Channel News Asia running the video on packages 24/7. That would suck.