There are two ways to wire up solar panels.
How to connect 2 solar panels together.
Connecting solar panels in parallel wiring solar panels in parallel implies connecting positive terminals of each panel together and wiring the negative terminals of each panel together as well.
When you are looking to connect solar panels produced by different manufacturers together the problem does not come from different manufacturing styles or cell type it comes from the electrical characteristics of the solar panels.
There are two main types of connecting solar panels in series or in parallel.
If you however need to get higher current you should connect your panels in parallel.
There are 3 ways to connect solar panels.
The parallel connection allows to increase the current keeping the same voltage.
The positive wires are connected to a positive connector within a combiner box and the negative wires are connected to the negative connector.
Wiring solar panels in a parallel circuit.
If you had 4 solar panels in parallel and each was rated at 12 volts and 5 amps the entire array would be 12 volts at 20 amps.
Maximum rated voltage 19 8v.
If both panels are rated at the same maximum voltage then you ll get maximum output.
Connecting two solar panels in parallel.
If we have two solar panels with same voltage and power the connection will be very simple.
As clearly visible in the picture it will be enough to wire the positive pole of one panel to the positive pole of the other one and then wire the negative pole of one panel to the negative pole of the other one.
Maximum rated current 5 8a.
Nonetheless it is possible to wire them in parallel.
The first way i am going to talk about is parallel because this is probably the most common way that panels will be connected.
You connect solar panels in series when you want to get a higher voltage.
If we have two or more solar panels with the same voltage but with different current it is not possible to wire them in series.
Then they are connected to the charge controller or to the inverter of the solar system.
Watts volts and amps.
For this example i am showing you connecting panels that are for a 12 volt system.
Connect the negatives to the negatives and positives to the positives.
For example our 115w sunpower solar blanket has the following ratings.
Connect all the positive terminals of all the solar panels together and all the negative terminals of all the panels together.