Preflight Fail: Battery unhealthy

AlexWUrobot · February 3, 2023, 2:48am

I run the machine learning on the simulation
There is QGroundControl and

roslaunch px4 mavros_posix_sitl.launch

After running 184 times flying python script on PX4-autopilot

cd px-ws/src/PX4-Autopilot/integrationtests/python_src/px4_it/mavros/
python2 mavros_offboard_posctl_test.py

There is an error “Preflight Fail: Battery unhealthy”
Then, drone cannot fly in the simulation envrinoment

The error shows in the terminal of the roslaunch px4 mavros_posix_sitl.launch

The terminal of python2 mavros_offboard_posctl_test.py shows
“failed to send arm command” and the drone cannot take off

However, the QGroundcontrol show the battery is 100%

If reopen the QGroundcontrol can get the battery error like this

Thus, the issue may be due to roslaunch px4 mavros_posix_sitl.launch

Thanks a lot

Sometimes there is the
“Preflight Fail: position estimate error”

Compass needs calibration - Land now!
Preflight Fail: Attitude failure (roll)

Leo1 · February 5, 2023, 2:32am

What I heard is that px4 is not designed to run in a learning env, which is why I switched to using OpenAI gym with ros and gazebo for the training.

AlexWUrobot · February 7, 2023, 6:21am

but the battery issue still sometimes happens

AlexWUrobot · February 7, 2023, 6:33pm

Also the document mentioned the battery should not have a issue in the simulated environment.