Battery Status 0 %

Hi Everyone,
I’m using a Pixracer Pro and a Mauch PL-200 current sensor. Unfortunately I cannot figure out why my battery is displaying 0 %. Which results in a “unhealthy battery” error. Voltage and current measurements do appear to be good. If anyone knows which parameters are connected with the battery status, this would already be very helpful to locate the source which triggers this error. Since I was not able to find the documentation to this problem. Or any suggestions in general are appreciated too.
Thanks for your help in advance!