Done 5 flights with my P2 zenmuse and I seem to be getting about 16 minutes from the smart battery. Seems short, but I've been flying in mostly temps in the 30's so I know that saps the batteries. Today I flew in about 18 degrees fahrenheit. We noticed the red flashing at about 15+ mins, so after about 1 minute we were bringing it back and were going to try a catch landing. But when my son let off the controls at about 12', it just kept slowly dropping and landed itself. So I assume it was out of battery. But when it came down, it looked like 1 battery light was on, with 1 light blinking, indicating the battery is low, but not almost completely dead for it to auto land. And thus far we have yet to hear an audible battery warning on any of our flights. We've noticed it flashing red (what I think is fast red) and then we have landed. But I thought there was supposed to be an audible warning and slow red flashes at 30% and then another audible and faster red at 15%. I checked in the software, and the 30% and 15% defaults are in there. I don't see any setting for warning beeps, so not sure if those can be activated in the settings. Is any of this normal? The lack of warning makes me nervous. We have an FPV and iOSD Mini setup ordered and so hopefully that will help us with knowing what battery life is left. Thanks.