Flew the phantom 2 today to see what happened when battery runs low. The P2 just settled down and landed where it was when it reached the 15% battery level. I thought it would return to base on the last 15% of battery but no, it simply landed where it was. I then turned off the controller and it then started up again, lifted to 20 metres and executed a return to base. Is there anyway it can be made to always try and return to base when the battery reaches 15% instead of landing first? That would seem more sensible to me.