I'm looking at increasing my flight time with my Phantom. My current setup is a stock phantom with gopro hero3 black mounted in water proof housing for protection. I am using OEM 2200MAH LiPo Batteries as well. I get around 7-9 minutes of flight time before I begin seeing the flashing red light indicating to me to land. What can I do to increase the amount of time? My thoughts are: Change Props to Vision 2 Props Change voltage protection to lower threshold based on studying battery mah amount recharged after a flight (Requires me to check how much mah the battery needs for a charge after usage, my hitec charger tells me how much it puts in) Reduce weight by purchasing a gopro hero3+ casing that is smaller and lighter Buy two battery mount and fly in dual battery setup The scary thing is this past weekend my phantom flashed red lights to me while I was flying it over water at around the 6:30 mark and as I returned it back to me it had just made it over land before it lost alltitude and "crash" landed on grass. No harm was actually done to the craft however I expected the battery to last on the order of 8-9 minutes. I suspect the heavier wind and fact that I had charged the batteries a few days prior is the reason that battery lasted less time than expected. I also suspect the voltage indicators are activating too earlier while there is still more capacity in the battery. Any advice on this potential situation? Thanks!