We installed an off-grid PV system with 3 Quattro 15kW (in Niger) with a special battery type (molten salt / FzSoNick, special Cerbo-programming), works ok. However if we now want to increase the battery size, using normal lithium batteries, we cannot expect that the Quattros and MPPTs work on the same DC bus bar. As more AC capacity is also welcome, we think to add 3 additional Quattro 15kW with their own MPPTs and a separate DC bus bar. So basically two seperate systems - on the DC side - no worries about different charging characteristics.
However, the systems nonetheless should play together on the AC side. Can the Cerbo work with 2x 3 Quattro, working with two different battery systems? Or how can we use two different battery types?