How To Size Solar Panel Charge Controller

12v solar panels 5w 45w.

How to size solar panel charge controller.

A solar charge controller is designed to receive power from a solar panel or array of panels and use it to charge a battery or bank of batteries. Below you will find a quick guide to choosing the proper charge controller for several popular solar panel sizes. This involves varying charge stages voltages and current depending on the type of battery and other factors. They differ according to their sizes displays features and the way in which they regulate voltages.

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. Phocos cm 04 charge controller 4a 12v. It does this by using a transistor to shunt the pv charging circuit. Overall though sizing charge controllers is fairly straightforward.

Solar charge controller functions. An improperly selected charge controller may result in up to a 50 loss of the solar generated power. How to size your charge controller. So really it s worth doing more investigation in your solar system for best sizing a proper solar charge controller.

They simply pass through the array current. 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. 12v solar panels up to 120w.

Phocos cm 10 charge controller 10a 12v. When it comes to charge controller sizing you have to take into consideration whether you re using a pwm or mppt controller. There are various types of charge controllers. 12v solar panels up to 70w.

Flexcharge pv7d charge controller 7a 12v. 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.