Generally speaking, the single battery on the market is about 3.7v, but in many cases, if the operating voltage range is slightly larger, there is obviously a problem of insufficient voltage. At this time, the battery pack and modular battery that can improve the battery voltage will follow. Among many high voltage batteries, the 48v lithium ion battery has been widely used. Compared with lead-acid battery, 48V lithium ion battery has the advantages of small size, light weight, strong temperature adaptability, high charging and discharging efficiency, safety and stability, long service life, energy conservation and environmental protection. 48V lithium ion battery can be divided into ternary lithium battery, lithium iron phosphate battery and lithium titanate battery according to the cathode material.

　　The 48V lithium-ion battery is composed of multiple lithium battery cells in series and parallel, because if a single battery cell is a 48V lithium battery, the service efficiency and life of the battery are not very good. The price estimation formula of 48V lithium ion battery is the price of a single lithium battery cell x (3.6~3.7V * n=48v) * m (the number of cells in parallel)+the price of protective plate+the price of shell+the price of auxiliary materials. Generally, the voltage of a single lithium battery cell is 3.6~3.7V, and its price will vary depending on the materials and processes used by lithium battery manufacturers.

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