How To Size Solar Panel Charge Controller

Solar charge controller functions.

How to size solar panel charge controller.

The charge process is performed in a smart or intelligent way. Shunt series and pwm charge controllers are unable to limit their current output. This means if your battery is full it stops the charging and if your battery is reaching an unhealthy. Phocos cm 04 charge controller 4a 12v.

Below you will find a quick guide to choosing the proper charge controller for several popular solar panel sizes. Phocos cm 10 charge controller 10a 12v. How to size your charge controller. If the solar array can produce 40a of current and the controller is only rated to 30a then the controller or system could be damaged.

It is the key for longer life and higher efficiency for your battery bank as the charge controller optimizes the power and voltage coming from your solar panels to provide best charging voltage and current to the batteries. This involves varying charge stages voltages and current depending on the type of battery and other factors. 12v solar panels up to 120w. Flexcharge pv7d charge controller 7a 12v.

12v solar panels 5w 45w. 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. This short article focuses on the mathematical selection criteria of a charge controller based on the production capacity of solar panel and the total dc load on the system. It does this by using a transistor to shunt the pv charging circuit.

An improperly selected charge controller may result in up to a 50 loss of the solar generated power. So really it s worth doing more investigation in your solar system for best sizing a proper solar charge controller. 12v solar panels up to 70w. They simply pass through the array current.

There are various types of charge controllers. They differ according to their sizes displays features and the way in which they regulate voltages.