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.
How to size solar panel charge controller.
Phocos cm 04 charge controller 4a 12v.
12v solar panels up to 70w.
There are various types of charge controllers.
So really it s worth doing more investigation in your solar system for best sizing a proper solar 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.
Below you will find a quick guide to choosing the proper charge controller for several popular solar panel sizes.
An improperly selected charge controller may result in up to a 50 loss of the solar generated power.
They differ according to their sizes displays features and the way in which they regulate voltages.
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.
This involves varying charge stages voltages and current depending on the type of battery and other factors.
The charge process is performed in a smart or intelligent way.
Overall though sizing charge controllers is fairly straightforward.
Phocos cm 10 charge controller 10a 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.
How to size your charge controller.
It does this by using a transistor to shunt the pv charging circuit.
This means if your battery is full it stops the charging and if your battery is reaching an unhealthy.
They simply pass through the array current.
12v solar panels 5w 45w.
12v solar panels up to 120w.
When it comes to charge controller sizing you have to take into consideration whether you re using a pwm or mppt controller.
Flexcharge pv7d charge controller 7a 12v.