I want to develop a battery management system to read live battery data and use it into a software that plans launch, path, return and control of the drone

Similarly, I cannot find the model for the new "slim" VTX mount, only the older, taller one.

@ralinaresg What SDK version is loaded on the Stinger?

I forgot to post the resolution, oops. It was indeed turtle mode. That channel was not mapped on my remote, and I ended up having to adjust the relevant PX4 parameters to disable turtle mode entirely. Thank you for the assistance!