So I have a F550 average weight. Tarot gimbal, GoPro, 5000mah battery, IOSd mini, DJI 2212/920KV motors. It flies really well. I am simply not getting the flight time I want or need. I am getting around 5 minutes before the LED starts blinking and I bring it in. I have the gains set at 175% as before the gains were way low and causing unstable flights and hard landings. With all of that even if I have to move to a better system I want more time to fly. 10 minutes and 15 in my dreams. I could add another battery but that would add weight and I would lose some stability. So all of these great YouTube videos with people flying the copters long ways out how in the heck do they get the flight times to do it. First where is a good place to put the low voltage settings? I almost lost it once when it went into auto landing over water. By the way I use Turnigy batteries that came in some wheeling and dealing. Maybe there old and need replaced? Tips and suggestions welcomed.