How Many Solar Panels Can a Charge Controller Handle?
The higher the battery voltage, the more solar panels you can use. Charge controller amps x battery voltage = solar panel size in watts. 30A x 12V = 360. 30A x 24V = 720. Again this should only be done if the controller VOC is not exceeded. And if you live in a cold climate, add at least 5V to the solar array VOC.