The maximum flight time of RoboMaster TT is 13 minutes, which is measured as RoboMaster TT, without extension modules, flying at a constant speed, without wind, and at sea level.
When extension modules (including the open source controller and ranging dot-matrix screen) are installed on RoboMaster TT and the drone is flown at a constant speed, without wind and at sea level, the maximum flight time measured is 8 minutes.