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Why install MPPT solar charge controller

Why install MPPT solar charge controller


We know that in order to charge the solar battery, the output voltage of the solar panel must be higher than the current voltage of the battery. If the voltage of the solar panel is lower than the battery voltage, the output current will be close to 0. Moreover, the output of solar panels is not fixed, but varies with the conditions of radiation intensity, ambient temperature and so on.

PWM solar charging controller has set parameters (or constant voltage, or constant current) to transfer the power of the solar panel. Easy to cause the battery always in a state of full dissatisfaction, on the other hand, in good weather can’t make full use of solar panels, resulting in waste.

In an independent photovoltaic system, the cost of solar panels and batteries accounts for 80% - 90% of the whole system, and the solar controller only accounts for 5% - 10%. However, the MPPT controller can optimize this system and play an important role.

For example, 1000W solar panel (value 770USD), 12V battery, needs install a PWM 60A controller (value 46USD), the charging current is 50A, amount of solar panels and PWM 60A solar charge controller is 816USD.

If the MPPT 50A controller (fangpusun blue MPPT100/50 value 66USD), in the same load, the same 12V battery state, only need installation 700W panel ( value 538USD) will be able to meet the demand for electrical equipment. The cost amount of solar panels and controllers is 604USD. Buy fangpusun MPPT100/50 solar charging controller help you save 212USD (816USD-604USD).

So, as a professional R & D solar controllers for 7 years, we recommend that customers use the MPPT controller to charge your battery at a low cost and efficiency. Our MPPT controllers have 5A, 10A, 15A, 30A, 50A, 45A, 60A, 70A, 80A, which are widely used in street light and home systems, connected to a battery monitor with App and Bluetooth capabilities.

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