I have solar panels & 3 growatt…
I have solar panels & 3 growatt batteries. There have been issues since the installation (last October) with the batteries working together. The technician has been twice & worked conscientiously to fix the issue (now replacing one of the batteries). I'm sure he has done his best, but I question whether the product itself is good enough to be linked together in this way - if it goes wrong again I might ask for 2 bigger batteries instead.