Lead-acid batteries: Adjust the battery management to the battery


Qualified person

You will find further information on battery management and the charging processes of the Sunny Island for lead-acid batteries in the technical information "Battery Management" at www.SMA-Solar.com.

The basic procedure for changing operating parameters is explained in another section Changing Operating Parameters).

Procedure:

  1. Select Battery > Charge.
  2. Set the parameter Maximum charging current to the maximum battery charging current recommended by the battery manufacturer.
  3. Set the parameters for boost charge. First set the parameter Battery boost charge time to the boost charge absorption time recommended by the battery manufacturer.
  4. Set the parameter Cell charge nominal voltage for boost charge to the cell voltage setpoint recommended by the battery manufacturer for boost charge.
  5. The parameters for boost charge are set.
  6. Set the parameters for full charge. First set the parameter Battery full charge time to the full charge absorption time recommended by the battery manufacturer.
  7. Set the parameter Cycle time full charge to the full charge cycle time recommended by the battery manufacturer.
  8. Set the parameter Cell charge nominal voltage for full charge to the cell voltage setpoint recommended by the battery manufacturer for full charge.
  9. The parameters for full charge are set.
  10. Set the parameters for equalization charge. First set the parameter Battery equalization charge time to the equalization charge absorption time recommended by the battery manufacturer.
  11. Set the parameter Cycle time equalization charge to the equalization charge cycle time recommended by the battery manufacturer.
  12. Set the parameter Cell charge nominal voltage for equalization charge to the cell voltage setpoint recommended by the battery manufacturer for equalization charge.
  13. The parameters for equalization charge are set.