Which solar street light battery is good? solar street light-li

The solar street light battery is the main equipment of the solar street light. At present, the batteries used by the solar street light mainly include lead-acid batteries, gel batteries, ternary lithium batteries, and lithium iron phosphate batteries. So which kind of battery is the best for solar street light? Okay? First of all, let's take a look at the characteristics of these types of batteries: 1. Lead-acid batteries: The plates of lead-acid batteries are composed of lead and lead oxides, and the electrolyte is an aqueous solution of sulfuric acid. Its main advantages are stable voltage and low price; its disadvantages are low specific energy (that is, the electric energy stored in each kilogram of battery), so its volume is relatively large, its service life is short about 300-500 deep cycles, and its daily maintenance is frequent. At present, solar street The light industry is still heavily used. 2. Gel battery: It is actually an upgraded maintenance-free version of lead-acid battery. It replaces sulfuric acid electrolyte with colloidal electrolyte, which is better than ordinary batteries in terms of safety, storage capacity, discharge performance and service life. Improvement, the price is even higher than the ternary lithium battery. It can be used in the temperature range of -40℃--65℃, especially the low temperature performance is good, suitable for the northern alpine region. It has good seismic performance and can be used safely in various harsh environments. The service life is about double that of ordinary lead-acid batteries. 3. Ternary lithium battery: high specific energy, small size, fast charging and high price. The number of deep cycles of the ternary lithium battery is about 500-800 times, the life span is about 1 times longer than that of the lead-acid battery, and the temperature range is -15℃-45℃. But the disadvantage is that it is not stable, and the ternary lithium battery of unqualified manufacturers may explode or catch fire when it is overcharged or the temperature is too high. 4. Lithium iron phosphate battery: high specific energy, small size, fast charging, long service life, good stability, and of course the highest price. The number of deep cycle charging is about 1500-2000 times, the service life is long, generally 8-10 years, the stability is strong, the operating temperature range is wide, and it can be used at -40℃-70℃. To sum up, solar street light is of course the best to use lithium iron phosphate batteries, and the cost performance is also the highest. So lithium battery has become a king in solar street light!
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