Speaking of new energy vehicles, people now think of the cruising range and charging speed for the first time, and these two index data are related to the battery pack in new energy vehicles. Indeed, battery packs are crucial for new energy vehicles, as much as gearboxes for traditional fuel vehicles. At the same time, because most of our consumers' impressions and experience of batteries are derived from mobile phone batteries, and the attenuation of mobile phone batteries has been experienced by people, so some quasi-new energy vehicle owners will also attenuate the battery pack of new energy vehicles. There is doubt. Today, let ’s talk about the battery pack!
First of all, let's talk about some national practices on the attenuation of new energy vehicle battery packs. According to the relevant laws and regulations of the country, the battery packs of new energy vehicle products on the market must meet the warranty period of at least 8 years or 120,000 kilometers. The related expenses are borne by the relevant car manufacturers. In other words, for at least 8 years or 120,000 kilometers, consumers do not need to worry about the attenuation of the battery pack.
Secondly, R & D engineers of new energy vehicles also have their own relevant strategies for battery attenuation. For example, battery low temperature protection, battery thermal management system, battery charging and discharging, etc. Here I also want to focus on the charging and discharging of the battery. If the battery is exhausted or fully charged every time it is used, the loss of the battery is the largest and the battery decays the fastest. Therefore, manufacturers usually set thresholds on their products to prevent users from causing permanent damage to the battery pack due to unconventional operations.