Is anyone making aftermarket batteries for the P3P with higher mAh rating than the stock batteries? I am looking for anything possible to extend flight time. This company seems to have done this with older models of the Phantom (http://www.ambattery.com/about.php) but I don't see anything yet on the P3. Has anyone found something reliable for the P3 with the specs I am looking for? Not looking around to find something cheaper, I am looking around to find something that will keep it in the air longer. Thanks!