What are the disadvantages of solar lithium battery street lights? Lithium batteries are like a gust of wind quickly occupying the solar energy storage system. Now the 18650 lithium battery is the most used in the market. The definition rule of its model is: such as 18650 type, which means that the diameter of the battery is 18mm, and the length is 65mm. Cylindrical battery. In the process of development, everything is constantly improving itself. Today, I will introduce the shortcomings of lithium battery solar street lights.
After-sales service:
It is inevitable that the solar lithium circuit lamp will not light up or have some other faults during use. The traditional controller is installed at the bottom of the lamp pole, which is convenient for replacement and maintenance. The lithium battery is installed at the bottom of the solar panel, which brings a problem. When a fault occurs, we must use a crane or climb to the top tool, which will increase the maintenance and after-sales cost in the later period. We recommend increasing the The capacity of solar panels and lithium batteries, on the other hand, lithium battery controllers have added an automatic half-power function, which prolongs the number of rainy days for solar lithium circuit lights. So this disadvantage is also a pseudo-small, as long as the quality of the controller we use is excellent, this problem has been solved.
Use environment:
Solar street lamps are now the darling of rural lighting across the country, and the temperature varies from south to north in my country’s vast regions. The discharge voltage of lithium iron phosphate battery is very stable, generally 3.2 V, and the voltage changes rapidly in the later stage of discharge (mainly referring to the remaining 10% capacity), and the cut-off voltage is generally 2.5 V. Ambient temperature, especially low temperature, will affect the discharge capacity of lithium iron phosphate batteries: the discharge capacity at -20°C is 45% of the normal temperature capacity, -10°C is 65% of the normal temperature, -5°C is 80% of the normal temperature, 0°C It is 90% of normal temperature, and the discharge capacity changes very little from 0°C to 20°C. So in these cold places in the north, it is difficult to use ordinary lithium batteries. However, lithium battery manufacturers have begun to produce lithium batteries suitable for low temperatures, but the cost is very high.
Post time: Mar-08-2023