Hi @hheimbuerger
Try uninstalling the Microsoft ACPI-Compliant Control Method Battery drivers in Device Manager , restart the laptop and check if this resolves the problem.
To get to Device Manager in Win10/11, press the Win key and the x key (both together) and click on the Device Manager link that appears in the menu list.
In Device manager go to ''Batteries - click + or > to expand the list - right click Microsoft ACPI-Compliant Control Method Battery - Uninstall'' and follow the prompts.
Restart the laptop in the normal manner. Windows will automatically reinstall the drivers.
There are 4 compatible batteries listed for the model.
The Lenovo part numbers are 5B10Q39197, 5B10W67390, 5B10Q39196 & 5B10W67214.
If you suspect that it may be the battery that is the problem, check if the batteries you're using has one of these part numbers shown anywhere on the battery or mentioned in the specifications etc as others that say they are compatible may not be if it is not shown. Search online using the ''part number only'' to find suppliers