The usual advice is use the battery manufacturer’s recommendations. If you do not have these then Victron gel 1 is a good starting point at 14.3V / 13.8V with equalization disabled. As this will essentially be running in float most of the time, more like storage then reduce float in a user profile to circa 13.2V or 13.4V. Consider a Smart Battery Sense linked by VE Smart Network to the controller if it is a SmartSolar model to get proper temperature compensation.
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