From what I understand from advice given by others, it is good practice to discharge the phantom after 20 flights. So I decided to do this yesterday directly after my 20th flight. I landed my drone at 30% and let it run for what seemed like ages until it got to 10%, and stopped as I have read you shouldn’t under any circumstance let your battery fall below 10% ( is the correct?). So is this the correct procedure? I felt guilty running it for 15 minutes not flying, and I’m afraid that it could affect the life of the motors?