Understanding What An MPPT Solar Controller Really Does

by Angel Waldrop

A Brief Introduction To MPPT Solar Controllers

An MPPT solar controller is an electronic device containing a DC to DC power converter. This power’s converting ability serves as the intermediary between the solar panel and the battery bank. 

A solar controller is mostly known for protecting electric compartments from overcharging. 

Nonetheless, it also produces more protective power. For instance, it directs voltage and electric power moving to and fro the solar panels. 

Principally, the majority of electric storage devices require about 14-14.5 volts to be fully charged. Similarly, newly invented solar controllers are made to produce just a related charging pace.    

Highlights On Solar Energy

In recent years, solar energy has gained large prominence. This is so because solar is readily available when compared to other forms of energy.

The energy produced daily by the sun possesses the ability to power the earth for a year. More to that, solar energy is free of emission and pollutant as these are harmful to the human body.

In developed countries like the U.S, China, and England, solar energy has been the secret to an uninterrupted power supply. 

Thanks to modern technology, the conversion of solar energy to electric energy is simple and straight-forward. 

According to modern science, the innovation of a more sophisticated solar technology is economically workable. 

Guidelines for MPPT solar controller usage

Whenever an MPPT solar controller is to be charged, a circuit controller should be used. This is to protect the battery device from overcharging or excessive discharge of power.

There is an exception to the usage of the circuit regulator while charging the MPPT solar controller. This rule comes into play whenever a solar controller less than 5watts is used

How to determine a quality MPPT solar controller

The process of choosing a quality MPPT solar controller requires a few crucial steps.

In other for an individual to make a quality MPPT solar controller choice, the product has to pass through a couple of basic requirements.

1. Quality voltage assessment

An MPPT solar controller must be agreeable with the available system voltage. For a solar controller, the ideal standards for arrangement are 12, 24, and 48 volts. 

If the individual in question plans to wire the batteries, on a 24 volts charging system, the MPPT solar controller must be rated 24 volts power as well.

A good number of solar controllers require a specific voltage charge. This can also be put in a more expansive term, that is, the initial voltage cannot be altered for another. 

Other controllers which do not require a specific charge voltage are a lot more sophisticated. These which do not require a specific voltage must contain auto-detective characteristics. These characteristics enable the controller to be used with a different voltage selector.

2. Decent current capability        

The MPPT solar controller must possess the ability to handle a good number of output currents simultaneously. 

It is advisable that an MPPT solar controller contains a safety component. For instance, a solar controller with 7.89 amp could probably produce a whopping 25% on a very sunny day. 


So here is what you should know about the MPPT solar charge controllers. This will surely help you make the right choice in the future.

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