Why Do Solar Lights Need Batteries ?

Solar lights need batteries to store the energy generated by the solar panels during daylight hours. The primary function of solar panels is to convert sunlight into electricity through the photovoltaic effect. However, solar panels only produce electricity when exposed to sunlight. Therefore, to ensure continuous operation of the lights after sunset or during periods of low sunlight, such as cloudy days, the generated electricity needs to be stored for later use. Rechargeable batteries serve this purpose by storing the excess energy produced by the solar panels during the day, which can then be used to power the lights during the night or when sunlight is not available. Thus, batteries enable solar lights to provide illumination independent of direct sunlight and ensure consistent lighting performance. Explore options for solar lighting solutions here.