For further reading mppt pdf.
Do i need a charge controller for solar panel.
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.
Solar charge controller functions.
There are always caveats to everything however.
However you still need a blocking diode to prevent the battery from discharging to the panel at night.
The charge process is performed in a smart or intelligent way.
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.
Keep in mind that you don t need one when the panel releases less than or equal to two watts for every fifty battery amp hours.
I get asked this question quite often and the answer is almost always a resounding yes.
In general you do not require a charge controller that usually requires the minimum maintenance or drop charge panels including but never limited to the one to five watt panels.
This means if your battery is full it stops the charging and if your battery is reaching an unhealthy.
Since this is larger than 200 you do not need a charge controller.
Last summer i finally had the opportunity to set this up for demonstration with a small 12w solar panel and two different battery banks.
Do i need a solar charge controller.
Since this is less than 200 you need a charge controller.
If you have an mmpt solar charge controller you have the room to get higher wattage solar panels at 24v or 48v without loosing to much power.