Exactly. When reaching ESS #1 the system is not able to charge the battery with enough energy from PV. Instead the majority of energy is feed to the grid. Either the system stabalizes itself after some time of “slow” charging from PV or manual intervention is required.
I saw this behavior a few times in this forum. One Example: (out of a few)
victron mp2 freeze after low battery alarm
That’s not the behavior I think I’m seeing. The system recharges the batteries with power from the mains, although this was explicitly prohibited in the DESS settings. To be more precise: If system reaches targetSoc-1 and if targetSoc-1 modulo 5 equals 0 (e.g. 15% or 20%) the system starts charging from grid.
But my workaround does exactly the behavior you described.
My System has AC-coupled PV connected to critical loads.