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Advantages of lithium iron phosphate batteries for solar street lights

2024-12-25

The battery is a very critical component of the solar street light system, and it is also a major part of the cost of the solar street light system. Solar street light batteries are divided into lead-acid batteries, gel batteries, ternary lithium batteries, and lithium iron phosphate batteries, and the characteristics of these batteries are as follows:

Battery classification	Battery features
Lead-acid batteries	Low cost, large capacity, high charging and discharging efficiency, but low specific energy, large volume, short service life (about 300-500 deep cycles), and frequent daily maintenance
Gel batteries	In fact, it is an upgraded version of lead-acid battery, which uses colloidal electrolyte instead of sulfuric acid electrolyte, which improves safety, power storage, discharge performance and service life, and the price may be higher than that of ternary lithium battery
Ternary lithium battery	The specific energy is high, the size is small, and the charging is fast, but the price is higher, the number of deep cycles is about 500-800 times, and the temperature range is -15°C-45°C
Lithium iron phosphate battery	High specific energy, small size, fast charging, long service life (up to 8-10 years), good stability, highest price, deep cycle charging times of about 1500-2000 times, wide range of operating temperature (-40°C~70°C)

What are the advantages of lithium battery solar street light system?

Lithium battery is a kind of battery made of lithium metal or lithium alloy as the anode material, using non-aqueous electrolyte solution, compared with other solar street light batteries, lithium batteries are more environmentally friendly, light weight, longer life, and of course, the price of lithium batteries will be slightly higher.

Lithium batteries are used in solar street lighting systems and have the following advantages:

The charging and discharging system of lithium battery generally adopts the integrated structure of lithium battery and controller, which is a controllable and pollution-free energy storage battery system.
According to the needs of users, lithium battery solar street lamps can also intelligently optimize the calculation of the remaining capacity of lithium batteries, day and night duration, weather conditions and other elements, reasonably allocate power levels, and complete the functions of light control, time control and storage memories, which can ensure the intelligent setting of the solar street light system;

Lithium batteries are classified as dry batteries, which are more stable and safer than gel batteries.
The weight of lithium battery is light, and the weight of the same capacity specification is about 1/6-1/5 of that of lead-acid battery;
Lithium battery has stronger environmental adaptability, can be used in the environment of -20 °C - -60 °C, after technical treatment, it can even be used in the environment of -45 °C, which also provides conditions for the promotion of solar street lights in cold areas.

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Advantages of lithium iron phosphate batteries for solar street lights

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