I’m no solar pro but when I added panels I was told all 3 need to be the same output & not mix. I have about the same setup you are shooting for. 3 panels and 2 li-ion batteries. I am thinking to add a couple more batteries since storage is important as panel output IMHO. Cloudy/shaded day can be offset by amount of energy is stored.
Again not a solar expert at all but this is working for me.
