Throw it into airplane mode and save on battery as long as you don't need any of those features. The GPS on the phone pulls down the battery really hard. If you need to change the RTH mid flight you will need the GPS of course.
fans4000e64a Posted at 2017-3-10 07:39
Actually it is not a good point that it is charging with Android phone : It drains the battery of the controller very quickly
The charging on the Android is no tiny that with the screen on it slowly discharges.