All of the above is great info... I mean, this information is so important. We used to get a post a day where someone tried to fly back against the wind without enough battery and so it lands... whever it is when it hits 10 % it will start to land. You might be able to change that but I would not. I have seen the battery drop 10 percent in less than a min flying against the wind I was in the desert so when it forced landed I was ok. Once I cleaned the poop out of my pants, I make sure that I plan my flight so that I get back with 30 percent battery.