Hi everyone, I was out flying over a river estuary a little before sunset today and had already flown one battery down to 31% with no problems. Landed and switched batteries. I flew out to about 300 meters distance and no higher than 60 - 70 meters and started working my way back following one of the channels of the river back towards my location when I got a red flashing status bar and a Battery Error warning. This lasted for a couple of seconds then the status bar returned to normal. I still had 79% battery left and I had started the flight at 100%. I immediately flew back to home and landed safely but was freaked out since I was over water most of the time. I'm on firmware 1.4 and had successfully been testing some of the new Intelligent Nav features as well. This has never happened to me before. Has anybody else had a brief Battery Error warning that returned to normal very quickly? The battery only has a handful of charges on it.