According to the storage capacity of solar LED street lamps, the use performance of the storage battery in the solar LED street lamp power supply system can directly affect the comprehensive cost, operation quality and service life of the system, while the lithium battery is energy-saving and environment-friendly, small in size, light in weight, and able to use an intelligent management system. Next, we will introduce the common ternary lithium battery and lithium iron phosphate battery.

Ternary lithium battery: high specific energy, small size, fast charging and high price. The deep circulation system of ternary lithium battery is about 500-800 times frequently, and its service life is about twice as long as that of lead-acid battery. The temperature range is - 15 ℃ - 45 ℃. But the disadvantage is that the cycle system is frequent and short, and the service life is shorter than that of lithium iron phosphate. At the same time, the safety factor and stability are relatively poor, and it is easy to decompose under continuous high temperature. When touching the combustible electrolyte and carbon materials in the battery, it will be ignited slightly, and then deflagration will occur.

Lithium iron phosphate battery: high specific energy, small size, fast charging, long service life, good stability, and the highest natural price. The deep cycle system battery is frequently charged for about 1500-2000 times, with a long service life, generally up to 8-10 years, strong stability, wide coverage of ambient temperature, and can be used at - 40 ℃ - 70 ℃. The defect is that the service performance is greatly affected by the ambient temperature, especially at low temperatures, the discharge capacity and capacity will be greatly reduced, and its energy density is low.

Both ternary lithium battery and lithium iron phosphate battery have advantages and disadvantages, and they also have their own solutions. Customers choose suitable lithium battery solar street lamps according to their own solar LED street lamps