Good news from SMA - SMA Sunny Island is now compatible with BYD Battery-Box Premium LVS 4.0-24.0 battery, with the firmware version starting with BMU 1.19 and BMS 1.8.
There is no specific minimum requirement for the firmware version of the Sunny Island. If necessary, please update the battery via the BYD Be Connect App or the BCP Desktop Tool. Please also observe BYD's recommendations regarding the battery usage ranges that can be set in the Sunny Island for deep discharge protection of the LVS.
The battery is approved for all applications (on-grid self-consumption, backup power and off-grid).
Further information and the recommended configurations can be found in the Technical Information "Batteries in Sunny Island Systems - List of Approved Batteries" on the SMA homepage.