How To Wire Your Solar Panel To Your Charge Controller

How you size your solar charge controller is dependent on the type of charge controller you have.

How to wire your solar panel to your charge controller.

The second fuse between your solar panels and charge controller is a little bit different to figure out. Refer to sunwize s tech note on solar charge controller types for more information due to popularity we will focus on sizing mppt charge controllers. Usually 12 24 or 48 volts. Solar panel charge controller wiring intro solar panel charge controller wiring diagram and step by step guide for off grid solar power system wiring.

Low power charge controllers are widely available commonly used on 12 volt battery systems. The size of this fuse is dependent on how many solar panels you have and how they are connected series parallel or series parallel. However if you are considering a higher powered system such as for an off grid cabin or whatever i recommend that you contact iron edison in denver. As you see in the connection diagram at first the solar panel is connected to the solar charge controller and then a 24v battery is connected to the charge controller.

A charge controller is a determining factor when it comes to solar panel wiring. It does this by using a transistor to shunt the pv charging circuit. Solar charge controller functions. 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.

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. Click on calculate to see the size wire required in awg american wire gauge. Enter the total amps that your solar panels will produce all together. 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.

The function of a charge controller is to regulate the charge going into your battery bank from your solar panel array and prevent overcharging and reverse current flow at night. Amzn has lots of them for example. This means if your battery is full it stops the charging and if your battery is reaching an unhealthy. For instance if you have one of our 40amp charge controllers we would recommend using an 40amp fuse.

For example your solar panel delivers 18 volts dc and 5 8 amps to the charge controller and the wire length is 40 feet. Enter solar panel output voltage. Charging your batteries with a solar panel is a great way to use clean renewable energy. They will be happy to help determine your needs they distribute charge controllers.

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.