Download the latest firmware update and the MSLoad utility software below. This firmware update contains all fixes to date. Only the latest firmware update needs to be programmed into the SunSaver MPPT.

NOTE: A Morningstar MeterBus to Serial Converter (model: MSC) is required to load new firmware into the SunSaver MPPT. Consult your Morningstar dealer for more information.



  • bugfix for RM-1 communications
  • lighting control bugfix