SMA Sunny Boy Storage 3.7/5.0/6.0


The first battery inverter with a multistring battery connection. Ideal for grid-connected systems.

  • Connect up to three high-voltage batteries
  • 10-year warranty
  • The integrated service package SMA Smart Connected for automated monitoring of battery inverters
  • Fully automatic backup function for supplying electricity to the complete home (optional)

The SUNNY BOY STORAGE multi-string inverter for batteries allows you to connect three different high voltage batteries to the same inverter. To connect batteries of greater capacity it is also possible to connect in parallel the 3 DC inputs.

The Sunny Boy Storage has a manual switching backup function. Furthermore, it can even take over the entire electricity supply of the three line conductors via the optional automatic transfer unit. Thanks to proven AC coupling, the Sunny Boy Storage is ideally suited to new and retrofitted systems.

The integrated webserver enables fast and easy commissioning, which is also possible via smartphone or laptop. Energy flows in the household are fully transparent thanks to the direct connection to Sunny Portal and Sunny Places.

  • Possibility of installation both on new systems integrated in any existing photovoltaic system.
  • Power in the battery-backup operation of up to 8 kW is sufficient for all standard loads. Integrated Secure Power Supply provides electricity to individual loads manually from the battery even in the event of a grid failure.
  • Optionally with an automatic transfer switch for full power supply to the home from the battery and PV system on all three line conductors in the event of a grid failure
  • 10-year warranty
  • Ideal for both retrofitting and new installations

Basic System