Settings for Epever 4210AN with Kirkland 27M Marine Battery

[jeffsolarnb]

I have an Epever 4210an with a 390w panel and a Kirkland 27M 120Ah Marine Battery.

What battery capacity do I enter into the software? 120 Ah or 60Ah? It's a 120 Ah but they say to only use 50% of that capacity. Not sure how that plays into the setup.

Could someone recommend the charging settings for this type of battery?

Link to battery at Costco.ca