PreArm: Battery1 unhealty with 3S battery at 12.2V

When trying to arm I get the message “PreArm: Battery1 unhealty” in MissionPlanner despite starting with a charged battery. I don’t think I got this message before updating to the latest version. But I’m not sure.

Battery voltage is 12.2 V (after a long time debugging). What should I check to find the cause of the error?

Tlog-file can be found here:

and here are my parameters:
2022-09-11.param (19.0 KB)