Hi Folks, I'm still new to this thing. I went out to fly and capture some video today but couldn't get the camera to turn on. It seems as though the battery is dead but there doesn't seem to be any way to tell for sure. This is odd because I charged it not that long ago. So that leaves me with a few questions: a. How long should the camera battery last? b. How long does it take to charge (seems like several hours) c. Anyone have any problems with the camera discharging without being turned on? TIA!