When faced with PWM and MPPT solar controllers, customers do not understand why solar controllers are divided so much, what is the difference between them, and the price of MPPT is so high, why should I choose MPPT controller? That must be expensive and expensive, and I will explain it to you below.

    1. The difference between PWM controller and MPPT controller is actually their different charging methods. Compared with the MPPT controller, the charging efficiency is higher, up to about 30%. The MPPT method adopts a more advanced charging method. This is the maximum power tracking technology.

    2. When using the MPPT controller, it is recommended to use a high-voltage solar panel to charge a low-voltage battery, so that the efficiency improvement will be more obvious. If the voltage of the solar energy and the battery are the same, for example, both are 12V, then the difference between the practical PWM and MPPT controllers is not very big.

    3. It is recommended to use PWM controller for low-power solar panels. Compared with the high cost of MPPT controller, if the power of the solar panel is small, it is more cost-effective to use PWM in terms of cost.