I have had absolutely no issues with mine. It gets slightly warm if I watch movies on Netflix on it, but otherwise no problems. I charge my battery every 3-4 days, though I'm not a heavy user. I can watch an entire 45 minute episode on Netflix and drain maybe 5-8% of battery?
The fact of the matter is that almost any product sold on such a large scale will have defective items, which you then end up reading about on the Internet, but in general I think there are no wide-spread battery or overheating issues.
Agreed, in any mass produced device a few bad ones will slip through. It is such a non issue though since Apple has such a great return/exchange policy. There have been people that have had several devices swapped out (even though I believe they are finding issues where no issue exists).
Originally Posted by cwinter
I have had no issues. Battery is pretty good in my opinion. And I have never had it overheat and I'm a pretty heavy user of my iPad.