Hi All, I was flying today and had a warning I've not seen before. I was only a minute into flight with a fully charged battery in my P3P, when all of a sudden I got a warning "critically low power". I'm in Phoenix, so it wasn't cold out (60 degrees or so). I was giving it pretty hard throttle, but the voltage was showing over 4 volts the entire time. I was only a few hundred feet away so was able to bring it back and safely land. Wonder what caused this, just my heavy right finger?