Hello experts,
I am desperately trying to read out the state of charge of my battery. I have an old Sunny Island SI6.0H 399 without a web interface and can currently only query the consumption / feed-in from the grid from the SHM2.0 via the SMA add-on and the consumption via my solar system via Elgris SmartMeter. But so far I can’t access the battery (BYD). What can I do?