The solar charge controller are electronic devices that regulate the electrical voltage received from the solar cells before it passes to the Solar batteries and the source from the battery to the electrical load in order to maintain the batteries used and to ensure that they are charged and used optimally.
How the solar regulator works:
One of the most important goals of the solar charge controller is to regulate the charging of batteries, meaning allowing the batteries to be fully charged without reaching the state of overcharging, and the charging regulators prevent the return of current from the batteries to the solar cells in the evening (where in the dark the solar cell is considered as an energy-consuming load).
Among the most important features that the solar charge controller provides us with:
1- Regulating the electrical voltage received from the solar cells before passing it to the solar energy batteries.
2- Protecting the solar cells from damage by preventing the reverse flow of electric current from the batteries to the solar cells.
3- Disconnecting the electric current from the battery (batteries) when it reaches its minimum storage limits, as well as disconnecting the current when it reaches its maximum storage limits.
4- The system is protected from excessive, missing or fluctuating electric currents due to the fact that it contains fuses and special circuits for that.
5- It works as a monitoring system through the scales used in it so that it can give a warning light in case of irregular work.
Wires connected to the “charging regulator”
Any charge regulator of different types contains 3 pairs (each pair contains a positive pole and a negative pole) of inputs and outputs, which are as follows:
A pair of wires coming from the solar cells (positive pole and negative pole) and shown in the above picture on the left side.