I crash my new drone during the first flight.
it is an F450 frame, Pixhawk 2.4.8, I upload the 1M version of Arducopter, the battery is a 3S 5000mAh fully charged.
When I start, it was in Altitude Hold mode, I had a buzzer on the battery in case the voltage is to low, in the video you can hear it, and at the same time I lost control, so I stop the motors.
I guess I have an issue with the battery, can you help me to do the analysis of the logs? I also saw an issue on Kalman filter, but I don’t know if I read it correctly
Video: Youtube link
Thank you for your help