The role of solar batteries

Solar energy as a new clean energy is highly respected by environmentalists, but "the moon is cloudy and sunny, the sky is windy and rainy", what to do when there is no sun? Solar batteries exist for this situation.
Photovoltaic off-grid power generation system is a power generation system that uses the principle of photoelectric effect to convert solar energy into electrical energy, usually composed of solar modules, controllers, battery packs, DC/AC inverters, etc.
Plan, the role of solar modules is to convert solar energy into electrical energy, supply load work or charge battery packs; The function of the controller is to protect the charge and discharge of the battery pack; Battery packs are used to store electrical energy; The role of the inverter is to convert direct current into alternating current. At night or on rainy days, when the solar cell module cannot operate, the battery pack supplies power to the load.
The working mode of the battery can be divided into two types: circular use and floating charge use. Often in the frequent charge and discharge working state, that is, cyclic use; Often in the state of charge, it is used for floating charging, which can make up for the capacity loss caused by self-discharge of the battery. VRLA batteries for photovoltaic power generation systems belong to the recycling mode.