I bought a GoPro2 a few months back and am still learning the ropes with it. It seems that no matter which setting I record on I'm really not getting that long a battery life and always seem to run out of battery power. I charge both batteries before planning to use also.
How long do your batteries last per type of recording?
*Comments posted above are only my opinion. I may be right....eh, I'm probably wrong. Take 'em for what they're worth.*