Hi all, i have the following observation in my 3 phase Victron multiplus II 5000 system with 6 5000 Pylontech batteries:
When i want the batteries to be fully charged and i do not want to consume any power from the grid I set the grid setpoint to -780.
What i notice is that the ESS keeps the grid setpoint around -780 (with oscillations, that is fine), yet around 85% that is no longer the case, it is not kept at -780 but lower, like -580 or so … and then of course when the batteries are nearly full the grid setpoint can not be kept as there is more power from the solar than can flow into the batteries and that effluent power is fed back into the grid (which is fine).
There is no additional load coming on line at the time of 85% …
A picture of what i see is attached. Notice the red area, where i expected it to be like before (-780) yet it changes to a lower number (-580) …
Is this normal behaviour and if so what is causing this ?
