Has anybody tested the battery life of the P4 batteries? How much flight time did you achieve and under what circumstances (flight speed, wind speed, hight over sea level, altitude, etc.)? How many batteries, in total, do you advise to have (3 (2 extra + stock))?

Hello, here is the flight time testing :http://forum.dji.com/forum.php?m ... mp;extra=#pid356540  and safety guidelines ( including maintenance) for P4 battery:https://dl.djicdn.com/downloads/ ... y_Guidelines_en.pdf