The life of a solar street light is determined by its accessories with the shortest lifespan. The accessories of a solar street light are mainly composed of solar panels, controllers, lifep04 batteries, light sources and light poles. Among them, the service life of the solar panel is more than 20 years. After 20 years, the solar panel only has a certain light decay (about 30% or more), but it can continue to be used; then the controller, so the general life is 8~ About 10 years, depending on the electronic components inside and the environment of use; followed by the lifep04 battery, the lifep04 battery was generally used in the past solar street lights, the service life of this battery is about 3 years, and the lead-acid battery is generally approaching the end of life. The battery may be very seriously aged, and the capacity cannot even reach 10% of the basic level, which basically cannot meet the lighting needs. Most of the batteries used now are lithium batteries. The high and low temperature resistance of lithium batteries is better than that of lead-acid gel batteries, and the number of cycles is more than that of lead-acid gel batteries. The deep discharge can reach more than 2,000 times, so the service life of lithium batteries can be More than 5 years; the current solar street lights are all LED light sources, and the life of a good LED light source can reach more than 11 years; if the last light pole is hot-dip galvanized and rust-proof measures are taken, the life can be 20 years above.
In summary, the main factor restricting the life of solar street lights is the battery, which is the first to be damaged during normal use. At this time, you don't have to worry, you only need to replace the battery and the solar street light can be used normally. At this time, I can recommend our universal maintenance lamp head of Nande Solar. It has its own battery and a controller with MPPT, which can adapt to solar panels of various voltages, without special matching, and also has a light source. All accessories are highly integrated. The replacement is also very convenient, just connect the solar panel cable and put the universal maintenance lamp head on the lamp arm to work normally.
