Changing The Battery Usage Through Battery-Backup Systems Without Increased Self-Consumption - SMA SUNNY ISLAND 4.4M Operating Manual

7 Commissioning
• Set the parameter Battery full charge time to the full charge absorption time recommended by the battery
manufacturer.
• Set the parameter Cycle time full charge to the full charge cycle time recommended by the battery
manufacturer.
• Set the parameter Cell charge nominal voltage for full charging to the cell voltage setpoint
recommended by the battery manufacturer for full charge.
5. Set the parameters for equalization charge.
• Set the parameter Battery equalization charge time to the equalization charge absorption time
recommended by the battery manufacturer.
• Set the parameter Cycle time equalization charge to the equalization charge cycle time recommended by
the battery manufacturer.
• Set the parameter Cell charge nominal voltage for equalization charge to the cell voltage setpoint
recommended by the battery manufacturer for equalization charge.
7.6.3 Changing the Battery Usage Through Battery-Backup Systems without
Increased Self-Consumption
Relevant for systems connected to the utility grid
Adjusting the default values
The parameters for battery usage are set automatically to reasonable values during basic configuration for the
respective system. The parameter values can be adjusted if there are special requirements for the system or the
battery.
78 SI44M-80H-12-BE-en-10
SMA Solar Technology AG
Operating Manual