Regardless of the application of solar energy, a good performance charge and discharge control circuit is essential. In order to prolong the service life of the battery, it must limit its charging and discharging conditions to prevent overcharging and deep discharge of the battery. In addition, since the input energy of the solar photovoltaic power generation system is extremely unstable, the control of charging the battery in the photovoltaic power generation system is better than The control of ordinary battery charging is more complicated. For solar applications, success and failure often depend on the success and failure of the charge and discharge control circuit. Without a good charge and discharge control circuit, it is impossible to have a good performance solar device system. Lead-acid batteries have been widely used in solar photovoltaic power systems. It is known that the service life of lead-acid batteries is closely related to whether they are over-charged or over-discharged. As long as the battery is not charged during the operation of the solar photovoltaic power system, but it is discharged, it can prolong the service life and let it work normally. More than five years.
How to choose a suitable solar charge controller?
The selection of MPPT solar charge controller needs to consider three aspects: 1. The input voltage of the electrical equipment. 2. Input current of the electrical equipment. 3. Load output control mode.
The choice of solar charge and discharge controller is generally determined by the power of your system. For example, to ensure how much continuous operation in rainy days, the size of the load power, etc., select the voltage level, control the magnitude of the current, and so on. The choice of this charge controller is critical. Because the street light solar controller is the control core of the entire system, the quality of the charge management directly affects the stability and longevity of the entire system.