For those of you who do longer distance flying ( I generally do 1/4 to 1/2 mile or less), I was curious if anyone has put together any battery power curves. Primarily I am curious as to the linearity of the discharge. I realize every battery will be very slightly different, but for the sake of this question, use the following assumptions. Lets, assume that you are flying a 1.5 mile flight with no wind and in perfect conditions. Your target is at the end of that 1.5 mile flight. No stop's just a fly over and return. That's a 3 mile flight total. You start with 100% battery. The real question is, also assuming you maintain a constant speed and altitude and you are using the camera without any gimbal adjustments during the flight does the battery power percentage drop faster from 100% to 50%, or does this drop faster ( Time wise) from 50% to lets say 25%). This can be a crucial point for the return flight back, to avoid a critical battery warning and auto land. Just curious to know if anyone has looked in to the power curve. Linear? Or Non-Linear?