I have the above spare unit, tried selling it but no interest so far.
But now thinking of using as a backup to my main unit or as separate ring main. Got 10 x longi 425w not yet connected to main unit.
For the 3kw unit I understand I need 100a 48v for the unit to run. I intend to get a 5kw Pylontech but in the meantime can i use 4 x 12v leisure batteries with different capacity? eg 12/80ah, 12/100ah… to check it all works.
Also, looking for a generator for this unit, is 6kva the minimum?
thanks