Can anybody explain why sometimes there is so much difference in power consumption of my device using the FLY-app. Usually the device looses about 15% power during a 25 minutes flight. Occasionally I cannot make 3 flights (more than 35% consumption per flight). Moreover the device is getting fairly warm. Before taking off, I remove all other apps in the background, and turn off mobile data and Wifi. There is also no noticeable difference in power consumption while recording or not.