3.4.9 Over Voltage Disconnect Interface
The value displayed in this interface is the value at which the charge controller will stop charging the battery.
When the battery voltage reaches this voltage, the controller will disconnect the charging solar panel(s) to
prevent the battery from overcharging. After the battery voltage drops below the Over Voltage Disconnect
value, the controller will reconnect the charging solar panel(s).
NOTE: To change the OVD value, press the ‘MODE’ button for over 5 seconds until the number starts to
blink / flicker. The controller will enter the adjustable mode, where you can use the ‘UP’ and ‘DOWN’ buttons
to adjust the parameter. After the value has been set, press the ‘MODE’ button for over 5 seconds to exit the
adjustable mode and store the setting
As it appears this is the only set point I certainly recommend a lower voltage for storage. 13.2 - 13.4 volts would be better. Apparently you also need to keep a watch on actual voltage for a few days so that you know what this controller is actually doing.
Battery still need to be fully charged before you lower the voltage.
BTW I don't like this controller as the programming is weak.