We recommended a factor of safety of at least 1 25 meaning you would multiply the current from your panels by 1 25 and then compare that to the 30 amps.
How to match solar panel with battery.
26 45 amps x 1 25 33 amps and would be too much for the controller.
Solar panels you should design your system such that the voc voltage open circuit of your solar panel s are between 1 4 and 1 8 times your nominal battery bank voltage.
Then the moment the cloud dims in which the solar panel can t produce enough voltage the relay will change the inverter s source which is from solar panel to battery.
Add a solar panel to keep your backup battery topped up step 1.
All panels at the low end of wattage output.
The vmpp of your array or single panel should be 1 15 to 1 3 times the nominal battery voltage.
Solar panel output is measured in watts.
Portability and cost are the two major factors.