I've noticed this once before and wondered what it was about, brought it into land and didn't notice anything strange again. Today the same thing happened. Open fields, no probs getting satellites, happy flashing green lights then when I got the low battery warning I noticed the indicator lights were solid red. Seemed to be flying fine. Brought it into land no probs. What could this be? I'm on 3.06 and the last time it occurred I was on 3.04.