Generally speaking it is a good idea to obtain your solar panels before you buy a charge controller.
Connecting multiple solar panels to one charge controller.
Large off grid solar and battery backup pv systems often require greater charging than a single controller can provide.
Solar panel charge controller wiring intro solar panel charge controller wiring diagram and step by step guide for off grid solar power system wiring.
If you connect the output of each controller on two separate battery banks each controller will charge the bank that is connected to its output using whatever power is available depending on the need state of charge the battery bank has.
Connecting the solar panel charge controller mppt or pwm are the same solar battery and the pv array in the right way is the essential work before enjoying the solar energy.
The white line is the negative connection all 3 panel negative wires are just simply tied together and to the wire that runs back to the negative connection on the charge controller.
Yes you can have two controllers on a one set of panels array.
Connect the negatives to the negatives and positives to the positives.
The red line is the positive connection to the panels.
You will see a symbol that looks like a triangle pointing down at a horizontal line.
Connecting two solar panels in parallel.
If both panels are rated at the same maximum voltage then you ll get maximum output.
You can think of a charge controller in the same way that you would think of a hard drive on a computer.
To meet high power charging requirements several solar controllers can be connected in parallel to a battery bank with each controller connected to its own separate pv subarray.