Im looking into purchasing an Inspire 1 soon , I know this may not be a fair comparison but I've owned a phantom 2 for nearly 6 months now I always fully charge the batteries but i've had 50% to 60% left several times and started a flight with that and ran it down to the 20% warning then to 15% autoland without a problem. Guess the inspire1 still has a few bugs to be worked out , anyway thanks to all you guys im learning a lot about it before I ever get one , great forum.