Hello all, my Phantom's flight time is very short. I am running a 11.1V 25C 2200 mAh LiPo battery, brushless gimbal, and a GoPro Hero 4. The gimbal runs off of the same battery as the Phantom. I have the stock 8" props and everything else is stock. Every charge I do on the batteries I make sure to balance them as well. Any ideas regarding what the cause of my short flight time might be? Thanks!