In the
solar street light system, the battery has the highest cost and the shortest service life. The battery life has become the most important factor in the use of the solar street light system. Therefore, we must use the battery reasonably to prolong its service life. How can we prolong the service life of solar street light battery in practical application? 1. Reasonably calculate the required capacity of the battery Before installing the solar street light, we must design the capacity of the solar street light battery. According to the system requirements, the lighting time every night, the local climate conditions, the number of rainy days and other parameters should be calculated rationally. The capacity of the battery should not be too small or too large. If the capacity of the battery is small, it will often be over-discharged. If the capacity is large, it will often not be fully charged, and it will always be in a state of power loss. It should be resolutely avoided that due to unreasonable battery capacity design, the battery will be depleted and over-discharged, which will cause internal changes in the battery, thereby affecting the service life of the battery. Therefore, the reasonable calculation of the required capacity of the battery is the premise to ensure the service life of the battery. 2. Control of battery cut-off discharge voltage The service life of a battery is related to its depth of discharge. The service life of a battery with a depth of discharge of 50% is much longer than that of a battery with a depth of discharge of 100%. The greater the depth of discharge, the shorter the battery life. To reasonably control the cut-off discharge voltage of the battery, the discharge cut-off voltage of the solar street light battery is generally controlled between 11.2V-11.5V, which is conducive to controlling the depth of discharge of the battery and prolonging the service life of the battery. 3. Battery use temperature control The service life of the battery is also closely related to the temperature. Industry experience generally believes that every 10°C increase in the ambient temperature relative to 25°C reduces the battery life by half. Low temperature has no effect on the battery life, but it will affect the battery. effective capacity. Therefore, it is particularly important to provide an ideal working environment for the battery. The battery is buried deep underground, which can effectively solve the problem of battery temperature. The study found that at a certain depth below the surface, due to the existence of geothermal heat, the temperature is less affected by the change of the external air temperature, and when the external temperature is high, the subsurface temperature is lower than the external temperature. When the outside temperature is low, the temperature below the surface is higher than the outside temperature. The battery should be avoided as far as possible from hanging on the pole body of the solar street light, so that the temperature of the direct sunlight in summer is too high, and the temperature of the cold winter is too low, which will affect the service life of the battery of the solar street light. 4. Pay attention to waterproofing The shell of the battery itself has a waterproof function. At the same time, the design of the waterproof lead of the solar battery can also prevent water from entering the lead. However, if the battery is immersed in water for a long time, it will still affect the service life of the battery. 5. Pay attention to monitoring the voltage of the battery of the solar street light. When the solar street light does not light up for several days, check the voltage of the battery. If the voltage is too low, it is lower than the cut-off discharge voltage controlled by the controller. If it is below 10.8V, the battery Serious over-discharge. If this happens, check the system carefully to see if the solar panel is working normally, and if there is any problem with the controller. If there is no problem with other components, you should first remove the light wire, and the solar panel will connect the battery under the control of the controller. Charge the battery for 5-7 sunny days, and check the battery voltage. If the voltage is normal, connect the light wire and use it normally. Do not allow the battery voltage to be too low, and allow the battery to fend for itself without supervision, otherwise the battery will not be fully charged, which will affect the service life of the battery. 6. There are many types of special batteries for solar street light produced by regular manufacturers, including starter batteries, power batteries, UPS batteries and other types. Due to the different application environment, discharge current, and depth of discharge of batteries, each type Batteries are not universal, you must choose solar-powered batteries, preferably solar colloidal batteries, which have a long service life. At the same time, the battery produced by the regular manufacturer should be selected, so that the battery performance is stable, the after-sale service is guaranteed, and the battery has a long service life, thereby promoting the overall service life of the solar street light system. Yangzhou Global Solar Technology Development Co., Ltd. is a manufacturer specializing in the production of various application products by using solar energy. Its main products are solar street lights, solar charging piles, solar garden lights, solar LED landscape lights, solar lawn lights, solar buried lights and solar power generation. systems and other products. In addition, as one of the earliest enterprises to enter the optoelectronic industry in China, our products mainly integrate Ru0026D, production, application and sales, and have won the trust of our customers with advanced technology, excellent quality and good after-sales service.
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