Well it was a first time for me. The bird told me propulsion output limited. Here is the line from phantom helper that shows the warning. It was 1 warning and non after. I quickly made a b-line home and landed. 10m 15.4s P-GPS 18satellites 218.5ft 35.5mph 1,137.0ft 44% 14.238V 3.531V 3.564V 3.578V 3.565V 0.047V Propulsion output is limited to ensure the health of the battery.