I'm new to the forum. I just received my 1st GoPro camera, a GoPro Hero 2, yesterday. I charged the battery and then played around with reading the manual, settings, and did some real short recordings. When I went to shut the camera off I found it was really hot. I took the battery out and let it cool down. This morning I found the battery is completely drained. What do you think?? Defective camera, defective battery?? Any ideas?