Good morning, Our Olliver #998 is the same model and options as yours. Thought I would just join into this thread as I have been having lithium battery issues too and folks here have been helping me. My situation might help somehow. 2022 Elite II with Lithium Pro Package with the heating blankets. After changing my Xantric to 15 amps, starting the charging process with my generator and then charging my batteries from 120v all day and all night - the batteries showed 13.7V inside on Zamp and also on my Lithionics app. Thought I was out of the woods.
I unplugged from show power and within 3 hrs with nothing on and sitting in the dark they were down to 97% on app. Last night down to 90% and this morning they are at 83%, 83%, 81% and about 13.2v. The batteries are still all showing blue/on.
Not sure what the next step should be.