Analysis of electric vehicle battery types and purchase methods

1. Types of electric vehicle batteries Lead-acid batteries Lead-acid batteries are called sealed, maintenance-free lead-acid batteries, and their advantages are low price, large capacity, and mature technology. Lead-acid batteries are also an important source of power for electric vehicles in the current market. The disadvantage of the fly in the ointment is that the weight of lead-acid batteries is still slightly heavier. Lithium battery Lithium battery is a kind of battery that uses lithium metal or lithium alloy as negative electrode material and uses non-aqueous electrolyte solution. Lithium batteries are small and light, which are more efficient, safe and environmentally friendly than traditional lead-acid batteries. Very suitable for elderly and female friends. The disadvantage of lithium batteries is that they are slightly more expensive. Nickel-cadmium battery The light weight and long life of nickel-cadmium battery are its biggest advantages. Nickel-cadmium batteries can generally be charged and discharged more than 500 times and are relatively durable. The disadvantage is that the price is higher, the capacity is lower, the cruising range is short, and the nickel-cadmium battery has a memory effect, and the battery must be discharged before it can be charged. Ni-MH batteries have higher energy than nickel-cadmium batteries and have a slightly longer cruising range. At the same time, it also overcomes the shortcomings of the memory effect of nickel-cadmium batteries, and the price has recently fallen with the increase in production. At present, some electric vehicles have begun to use nickel-metal hydride batteries. [Details>>] 2. First, pay attention to the indicators of battery capacity and voltage. Battery is the most important power source for electric vehicles. Different capacity, power and driving distance make the price of electric vehicles different. 2 to 3 times. So when buying, it is necessary to figure out how many volts and how many amperes of the electric vehicle battery you are buying. Under normal circumstances, an electric vehicle battery with 48 volts and 20 amps can travel longer than 36 volts and 10 amps. Generally speaking, the greater the battery capacity and power, the higher the price. Second, ask clearly about the warranty period and detailed warranty content of electric vehicles. Merchants generally promise a one-year battery warranty, but the one-year warranty stated by the merchants is calculated in time intervals: generally refers to the date of purchase, within six months. Replace the battery with a new one for quality problems, and replace the old maintenance battery for six months to one year. The merchant is not responsible for problems that occur after one year of use. Therefore, when purchasing a battery car, consumers should discuss with the merchant the detailed battery warranty period and corresponding content, and indicate on the warranty card to avoid consumer disputes. Third, we must choose the brand, service and word-of-mouth brand, service and word-of-mouth is the best way to promote electric vehicles. Consumers should not only choose high-quality electric vehicles, but also compare services and brands. They should pay attention to knowing whether the product has an after-sales service point in the region, and what is the reputation of service quality and reputation. In the future, when electric vehicles break down, they can be dealt with in the shortest time. Disclaimer: Some pictures and content of articles published on this site are from the Internet. If there is any infringement, please contact to delete. Previous: What are the countermeasures for environmental pollution of waste batteries?