How To Wire You Solar Panel To Your Charge Controller

For example your solar panel delivers 18 volts dc and 5 8 amps to the charge controller and the wire length is 40 feet.

How to wire you solar panel to your charge controller.

Usually 12 24 or 48 volts. A charge controller is a determining factor when it comes to solar panel wiring. Refer to the installation material for the charge controller you chose when selecting the correct wire size to use. By doing so i can easily connect and disconnect the panels from the charge controller.

However before you can get started you ll need to install a charge controller which regulates the voltage from the solar panel as it s transferred to the battery. Maximum power point tracking mppt charge controllers are for wiring solar panels in a series where pulse width modulation pwm charge controllers are used to wire solar panels in parallel. For instance if you have one of our 40amp charge controllers we would recommend using an 40amp fuse the second fuse between your solar panels and charge controller is a little bit different to figure out. Enter solar panel output voltage.

Voltage drop in a single panel system as you can see in the calculation the voltage drop is 4 09 which will reduce the overall power delivered to the charge controller. Click on calculate to see the size wire required in awg american wire gauge. The main thing i have done as seen in the pictures above is to add mc4 connectors between the conjunction box on the left solar panel and the charge controller. Otherwise on sunny days the solar panel may produce more energy than your battery can handle which can damage the battery.

The size of this fuse is dependent on how many solar panels you have and how they are connected series parallel or series parallel. How to bypass the solar charge controller. The wires between batteries in a battery bank tend to be the largest in the system since they are used in conjunction with a power inverter that can at times demand more current than that the pv system can supply on its own. Enter the distance in feet from your solar panels to your battery bank charge controller.

Here is what you ll need. Basic solar panel set up.