I know I have seen this somewhere else before, but please offer any help if you are able. I have had my iPhone 6 for almost a year. Battery life is GREAT! I recently bought the P3 Professional and installed the DJI Pilot App. The first time I flew the P3 for about 10 minutes, my iPhone charge went from 83% to 35%! I have tried shutting down all other programs, uninstalling and reinstalling the Pilot App, and then performing an iPhone reset after doing that. But, I am still seeing about 50% battery drain in 15 minutes of flight time. I need to find an acceptable solution pronto! Some of the properties I am filming require at least 45 minutes of work, and I won't be able to do it on one iPhone charge. Any help not telling me to try the things that I have already mentioned would be greatly appreciated. Also, I am willing to pay several hundred dollars to anybody that can erase the DJI 15.5. mile no-fly around Washington DC. Please contact me if you want some $$ for this task.