MPPT Solar Controller

Will an MPPT controller overcharge a battery?

Recently received inquiries from some customers, they are worried that the MPPT controller will have some adverse effects on the battery during charging. The original text is as follows:

 

Hi everyone,

I’ve tried finding the answer to this via Google but keep coming up with conflicting information so thought it was better to ask.

If I connect an MPPT controller directly to a 12v battery, will it monitor the battery and reduce charge as the battery fills, or will it just keep pumping current regardless? I already have an MPPT and I’m trying to work out if I also need a DC-DC controller as well.

Thank you!

I believe that other people will also have this question. The cost of comparing the battery is relatively high. Now I will tell you about the charging principle of the MPPT controller.

In fact, there is no need to worry about this at all, because the MPPT controller we produce adjusts the charging state according to the state of the battery. Take a 12V battery as an example. When the battery voltage is 10V-13.5V, the MPPT controller will charge with the maximum current. , that is, the MPPT charging stage.

When the battery voltage reaches 13.5V-14V, the state of the controller will be adjusted to float charging. When the battery state reaches 14.5V-15V, the MPPT controller will stop charging. Of course, it is charging. During the process, the current will become smaller and smaller until it is zero and the battery is fully charged.

This is the charging principle of the MPPT controller. It will adjust the charging current according to the amount of battery power. This process is automated and does not require manual operation, so it is very convenient to use.

Of course, not all MPPT controllers can achieve this function. Some factories reduce the quality of the components used in pursuit of low cost, and some factories do not have the strength to develop MPPT controllers, so they have developed a problem. Such products may also cause damage to the battery, so when choosing an MPPT controller, you must choose a good quality product, so as to avoid damage to the battery due to the quality of the MPPT controller.

 

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