Hi All
I have 2 inverts in parallel
1 x 4000va/5000kw model sol-i-ax-5m firmware-72.40 U2- 1.24
1 x 5000va/5000kw also model sol-i-ax-5m (think this one is actually a sol-i-ax-5p) firmware-72.61
8 x 220 AGM batteries 4 in series and in parallel with another 4.
8 x 260w solar panels on the roof all connected to the 4000va/5000kw also known as the pf0.8
They were not able to connect in parallel so I contacted the supplier and the send me firmware 72.61 to downgrade the new pf 1.0 machine and 72.70 to upgrade my old machine. After the fact I read that these two versions are not compatible either so I just took the old one back to 72.40.
I am not to sure if these are the best firmware for the two machines and now my batteries just go up to 50.3v max
Can I maybe use the same firmware on both machines?
Which firmware will be best for AGM batteries?