This is related to my earlier question 'Mutiplus II added to existing non Victron system'
I now have the system up an running and it is mostly working, however I have a problem that I am not sure how to correct or even if it can be corrected.
My system consists of a Growatt SPH 5000 Hybrid inverter and 4.5kw of PV and 17kwh of Pylontech batteries to which I have now added a Multiplus-II, Cerbo GX and 15kwh Seplos Mason battery.
The Victron is configured with ESS but it and the Growatt inverter are connected to separate circuits on my Consumer unit. There is no PV connected to the Victron. The Growatt monitors the grid use via a Eastron meter connected to the incoming supply and the Victon has a current transformer connected to the same tails but inside the CU.
The problem is that the Victron keeps using power from the Growatt and its batteries to recharge the Victron connected Seplos battery. This seems to happen most of the time but it is a particular problem when the Growatt has charged its batteries overnight using cheap rate electricity, as soon as the cheap rate period ends and the Growatt moved to normal running the Victron pulls 3kw from Growatt and pylontechs to charge its batteries.
Is there anything I can do to minimise this issue?