In my last 4 long flights I have noticed an erroneous low battery warning since upgrading to the new firmware. It occurs when I have the RTH altitude set to 500 meters (I fly near mountains that are 480 meters high) and am out about 8000 - 10,000 feet out. It seems to occur at about the same time in the flight each time. It happens at about 75% battery and must dismiss the warning or it will force a RTH. After I dismiss the warning I notice the H is no longer on the power line for a brief period, but then returns to where it should be after a minute or two. I am aware that the P3 takes into account the power necessary to fly up to 500 meters, back home and then back down. I'm used to this as I have done these kinds of flights a number of times. This is different. The low battery warning is premature even considering my distance and altitude. Anyone else encounter this?