Connecting Solar Panel To Battery Without Charge Controller

The output wires on solar panels are typically fitted with mc4 connectors which are long cylindrical fittings that have a male and a female side.

Connecting solar panel to battery without charge controller.

To connect the rv solar system you would have to run a second set of cables from its charge controller directly to the terminals of the battery you want to charge. A charge controller is basically an appliance that regulates or stabilizes the voltage produced by the solar panel the direction of current and prevents overcharging. Connect the charge controller to the battery bank with battery cables. In order to ensure they connect correctly fit the wires running from your charge connector with mc4 connectors.

A solar charge controller is a component that helps manage the power that is going into the battery store from the solar panel. It also ensures that power does not go back towards. The solar power generated by the solar panel is received by the solar charge controller. So the rv solar system now has two sets of cables one to its own battery and another set to the battery you want to charge.

This is necessary because the current produced by the sun my vary depending on the intensity of the sunshine. This is why you can t connect your solar panel directly to your battery. Connecting in series means joining the positive terminal of a solar panel to the negative terminal of the next solar panel until eventually you are left with one free positive and one free negative terminal of the array which are to be connected to the input either of the inverter in case of a grid tied system without a battery backup or the charge controller in case of a grid tied system. 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.

When the battery is full the charge controller will stop delivering energy to the battery. The thickness of the wire will depend on the type of charge controller you get. The charge controller also senses if the battery is full. The solar panel connects to the controller through positive and negative leads only creating a charging function when the controller is connected to a battery.

Use mc4 connectors to connect the wires to the charge controller. This diagram illustrates the connectivity of a typical solar power kit including a solar panel a solar charge controller a battery and the load e g. A good charge controller will average the voltage fluctuations of the panels and output a steady charging voltage to the batteries. It safeguards the deep cycle batteries from being overcharged during the day.

It will also protect the batteries from overcharging as well as protect the panels from current back flow from the batteries.