As a necessary component of the off-grid power generation system, the solar controller has more and more models and specifications of solar charge controllers, and the functions and characteristics are also different. For different application scenarios, the requirements for solar controllers are completely different, and the working parameters, structural design and other aspects are different. Today, we will do an analysis of the common battery voltage types of solar controllers.

The use of solar controller, the voltage is divided into two parts. One is the voltage range of the connected solar panel and the voltage range of the connected battery. The current mainstream controllers on the market generally use battery voltages of 12V, 24V, and 48V. But not all controllers can be used with these three batteries? No, some only work with 12V. Some can automatically adapt to 12V/24V. The high-end controller can automatically adapt to the three voltage batteries of 12V/24V/48V. Therefore, when selecting the applicable voltage of the controller, you must judge according to your own battery voltage.
The input solar panel voltage range is easily overlooked by many people, and it is not very clear what voltage solar panel to use to match the controller. Before choosing the solar panel voltage, you must first determine whether your controller is a PWM type or an MPPT type. Different charging technologies have different voltage requirements for the solar panel. If it is a PWM controller, the voltage of the selected solar panel is basically fixed and cannot be changed casually, otherwise the battery will not be fully charged or energy will be wasted.