What is the difference between an electric vehicle battery and an electric vehicle battery pack

The maintenance-free battery (dry type) does not need to add distilled water and adjust the concentration of the electrolyte, it is fully sealed, and generally there will be no electrolyte overflow on the surface of the battery. The maintenance of the battery (wet) is more troublesome. In addition to the maintenance items of the maintenance-free battery mentioned above, the following two aspects should be paid attention to: First, check and adjust the height and concentration of the electrolyte. The height of the electrolyte should be at the highest Between (MAX) and minimum (MIN), too low will reduce the capacity of the battery and cause vulcanization of the electrode plates, and too high will overflow the battery surface and corrode the pole posts, wires and the body. The concentration of the electrolyte has a great influence on the working condition of the battery. At present, each battery in a car (mostly called a battery in a car) is 12V, and each battery has a large capacity, and the smallest car battery has a capacity of 32Ah. No matter how small the capacity is, although it can be used for cars, it is not easy to start in winter. Your question is not very clear. There are two types of electric vehicles. One is electric bicycles (including electric motorcycles, electric mopeds, electric wheelchairs, electric vehicles for the disabled, electric tricycles, electric freight vehicles, electric police vehicles, etc. ), the other is electric cars. Electric vehicles are divided into fully charged and hybrid electric vehicles. Let me talk about electric bicycles. A battery has 12V and 20V. Of course, there are 36V, 48V, 60V, and even 72V. Of course, the electric vehicle batteries of these voltages are nothing more than the combination of different battery cells. Moreover, the battery capacity of an electric bicycle is much smaller than that of a car. Most of the battery capacity is 20Ah, and the capacity is also 10Ah, 12Ah, 14Ah, 30Ah, 36Ah, 42Ah, 50Ah, 58Ah, 60Ah, 76Ah and other different specifications. Generally, electric bicycles mostly use 20Ah, and some large electric vehicles such as electric freight cars use batteries with larger capacity. There is no national standard for uniform regulations on the battery capacity of electric bicycles. In order to reduce the trouble and safety of riders, electric bicycles mostly use maintenance-free batteries (dry-type) batteries. Then talk about electric cars. Electric vehicles are currently an important trend to replace fuel vehicles. However, due to the limitations of the battery manufacturing process and manufacturing technology, the unit power of the battery is small and the unit volume is larger. As a result, electric vehicles are still in the development and trial stage and have not been fully put on the market. Some hybrid vehicles are also developed and produced by different automobile manufacturing companies, and these companies have not reached agreement on battery voltage standards and battery capacity standards. Just one thing, the batteries used in most hybrid cars today are nickel-metal hydride batteries. Disclaimer: Some pictures and content of the articles published on this site are from the Internet. If there is any infringement, please contact to delete.