Hi All,
I followed Inhalts instructions and it seems to work to an extend that I will probably ignore this calibration issue.
I set the energy settings back to default, let it run dry and turned it on again. The laptop was staying at 0% charge for another 2,5 hours until it finally shut down giving me about 7 hours to work with. The laptop then charged back to 100%, but battery bar is still reporting 6.484 mWh capacity.
@inhalt: thanks for the advice!
@tomtom: thanks for checking testing out the windows reset – I will skip trying this.
This issue is annoying, but no deal breaker for me, I will just keep in mind that I have at least 2h more than reported. If anyone has a fix, I would be happy to hear about it.