New to this. Have an off-grid system with a Phoenix MultiPlus Compact 24/1600/40 and 4 Victron AGM 12V 220Ah. 2s2p. This is equipment from 2008 so the batteries are getting old. I ordered some 2V traction batteries to replace them. I would like to have more power though...
So I was thinking of buying a MultiPlus 48/5000 to use the old AGMs in a series setup until they are completely dead and replace them later on with more traction batteries. I would also buy extra panels and extra MPPTs to be able to charge everything. I would connect all the solar to the 48V AGM battery bank and its 48/5000 and wire the AC-out of the 48/5000 to the AC-in of the 24/1600/40. A cascading setup. Can I do this? Or would the 24/1600/40 try to charge the 48V battery through the AC-out of the 48/5000? Can you disable this? If I also buy a Venus GX, could I monitor and control both with one device?