Hello, last night I decided to attempt some night pictures. It was 14 degrees, fairly calm wild conditions, and i was 9 mixtures into the flight. Everything was working correctly and i was getting some great pics until the battery got to 41%. It suddenly went from 41% to 8% in 2 seconds, the landing gear started to lower and my heart rate jumped, lol. I was over 200 ft high and a few hundred feet out. I was able to get it back and land it, so theres nothing happened to the bird, but would just flying in the cold create that dramatic % drop?