Went out this morning to get some photos of snow fall from last night. I was up about 390 feet and around 1000 away, when I look down and saw critical battery flashing, my volts still looked good. Fortunately I was able to bring her home and land safely. The battery was purchased Black Friday and haven't had any problems. Yesterday I drained that battery to 8% to do a full re charge on her, and that was the first time I have done that to a battery. Any of you guys experience this or other recommendations. Forgot to mention, everything is updated, and outside temp was around 12 degrees, if that makes a difference.