Battery Charge Rate Configuration

Steve. Most solar controllers that I'm familiar with have preset charging algorithms built in. Normally you only need to select which type of battery you are charging: flooded, sealed or gel. Gel batteries being the standout as they should never see more than 14.1V whereas others can receive much higher voltages, particularly if they are 'equalising". Sometimes this is done by setting 'jumpers' and sometimes a rotary switch.
If your charger has to be configured in detail, then you battery dealer or battery website could help.
Mark

Did some research over night and found the specifications for the Delkor Batteries,
Bulk Charge is 14.4 and Float is 13.5
Charge controller was on 14.3, moved up one notch.