How to ensure the maximum capacity of the solar street light battery?

Selection of battery capacity of solar street lights: Since solar street lights in the form of complementary solar photovoltaic power and commercial power do not need to consider the impact of insufficient sunlight in continuous rainy days, the capacity of solar cells and batteries can be calculated with the minimum requirements every day. Since the power generation of solar cells is different in different seasons of the year, in southern my country, the most power generation is usually from July to October, and the least is from February to April; solar street lights in the form of complementary solar photovoltaic power and mains electricity As long as it is calculated according to the month of July-October when the power generation is the most. If the minimum time is from February to April, the electricity generated by solar cells will be wasted from July to October. The capacity of the battery only needs to meet the power of one day. In order to meet the life requirements of the battery, the depth of discharge should not be too deep, and should not exceed 80%. As for the control method, the mains cut-in should be performed when the battery voltage is above 11V (for 12V system), and the mains cut-in should be controlled. One-way, no matter how the battery voltage recovers at night, the mains power must be withdrawn after dawn, so that the depth of discharge of the battery can be ensured. For details, please log in: www.chz-lighting.com.