I had the battery in my 2015 Forester go dead two or three times for unexplained reason. I assume I left something on that I did not discover. I know once I left the key in the ignition in OFF position.
This class action suit explains it I think.
https://m.carcomplaints.com/news/2021/subaru-battery-class-action-lawsuit-partly-dismissed.shtml
This class action suit explains it I think.
https://m.carcomplaints.com/news/2021/subaru-battery-class-action-lawsuit-partly-dismissed.shtml