Connecting Multiple Solar Panels To A Charge Controller

Connect two large solar panels to one battery.

Connecting multiple solar panels to a charge controller.

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. Maximum rated current 5 8a. In fact by wiring several solar panels in series we increase the voltage keeping the same current while wiring them in parallel we increase the current keeping the same voltage. Generally speaking it is a good idea to obtain your solar panels before you buy a charge controller.

For example our 115w sunpower solar blanket has the following ratings. Then they are connected to the charge controller or to the inverter of the solar system. You can think of a charge controller in the same way that you would think of a hard drive on a computer. If both panels are rated at the same maximum voltage then you ll get maximum output.

Here s something you can do. Large off grid solar and battery backup pv systems often require greater charging than a single controller can provide. 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. The combined power of the two panels would exceed the current handling capability.

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. Connecting two solar panels in parallel. The connection of multiple solar panels in parallel arises from the need to reach certain current values at the output without changing the voltage. You will see a symbol that looks like a triangle pointing down at a horizontal line.

Maximum rated voltage 19 8v. The red line is the positive connection to the panels.