How long is the battery life?

People who buy traditional cars are basically not worried about replacing the engine, but people who buy electric cars are worried about the battery life. According to Xiao Chengwei, an expert in the overall expert group of electric vehicle major projects of the National "863" Program, the capacity of the battery will become smaller and smaller as the battery is continuously charged and discharged. When the battery capacity is less than 80%, it is not suitable for use as a power source for electric vehicles. According to a report by the German Solar and Hydrogen Energy Research Center, in existing electric vehicles, the life of other components is usually around 10 years, which is longer than the life of the battery.

For the consumer's concerns, the auto company's answer is "the battery life is different depending on the use situation, such as the driving habits of the owner, the weather and other factors." After about 10,000 cycles, the capacity of the BYD iron battery can still reach the initial capacity. 70%, still working. Even if you charge twice a day, it will only be 730 times a year. You don't have to worry about using it for more than ten years. Lei Lin, the head of Jianghuai's vehicle performance test, also told the media that from the experimental situation, the battery life of 100,000 kilometers in five years can be fully guaranteed.