battery.remaining_percent returns negative value

[ramgrandhi]

Hi there!

I'm running on SITL setup with latest releases : PX4 (1.11.0) + mavsdk_server (0.30.1) + mavsdk-python (0.12.0).
My pre-flight-checks are failing due to the negative value that is returned for battery.remaining_percent.

Just by running mavsdk-python/examples/telemetry.py you will notice the following.

Waiting for mavsdk_server to be ready...
Connected to mavsdk_server!
Position: [latitude_deg: 47.3977504, longitude_deg: 8.5456064, absolute_altitude_m: 488.0440368652344, relative_altitude_m: -0.08500000089406967]
**Battery: -0.009999999776482582**

It wasn't the case with my earlier setup which uses a slightly older versions of (PX4 + mavsdk_server + mavsdk-python) components.

Appreciate your attention!

cheers,
Ram

[JonasVautherin]

Could it be that PX4 sends that value? Do you have a way to check that from the PX4 side? I guess we may have an error somewhere on the way (numbers get translated), but it would be nice to know what PX4 sends in that case 👍.

[julianoes]

Battery stuff has changed a bit, so yes we should check what PX4 is sending now.