A standard solar panel charge controller wiring diagram includes the solar panels (PV Array), the charge controller, battery, and load. Each of these components is interconnected, with specific points of contact, as shown in the wiring diagram. Familiarize yourself with these diagrams and the specific make and model of your charge controller.
A boost solar charge controller is a type of charge controller that allows you to charge a wide range of 36V-88V battery systems with 18V and 36V Panels. This type of boost controller must be connected conversely, with the solar panel connected to the controller first.
To connect a solar charge controller, first, connect the solar array to the charge controller after the battery has been connected. Then, connect the load to the charge controller load port. The inverter should only be connected to the solar battery.
Connecting the PV Array to the Solar Charge Controller These will be labeled as ‘PV Array’, ‘Solar Panels’, or ‘Panel’. Again, pay close attention to the indicated polarities. Once more, match the polarity. The positive wire goes to the positive solar panel terminal, and the negative wire connects to the negative terminal.
The PWM charging technology used in the traditional controller cannot charge the battery continuously at the point, so it cannot obtain the maximum energy of the solar panel. Instead, the solar controller with MPPT can always track the maximum power point of the array, so as to charge the battery with maximum energy.
To wire a solar panel, connect it to the solar charge controller. Solar panels can generate high voltages, so be careful to avoid electric shock. Solar controllers are available in 12V, 24V, and 48V, and the rated voltage of the solar controller should be lower than the input voltage of the solar panel.