Komentar resmi
You likely need to do a deep discharge battery calibration. We recommend that that gets done after every 20 flights or so to keep the battery power readout accurate.
Turn on the aircraft and turn on the motors but don't take off. Keep it on the ground until the battery readout shows the battery is at less than 5% and then do a full charge on a single charger. This makes sure the batteries current totalizing circuit is calibrated.