Share battery maintenance tips for electric vehicles

Battery maintenance techniques for electric vehicles Many people want to buy electric vehicles, but they are worried that the battery life is short and cannot help use. It is really difficult to choose. Let us analyze the battery of electric vehicles. Let’s take a look at the wide range of batteries, including lead-acid batteries, nickel-cadmium batteries, nickel-hydrogen batteries, lithium batteries, and lithium polymer batteries. At present, the important power lithium-ion battery used in electric vehicles is lithium battery. From smart phones, laptops to electric bicycles, lithium batteries are ubiquitous in daily life. The service life of lithium batteries is about 5 to 20 years, with an average of 8 years, but generally speaking, when the battery capacity of an electric car is less than 80% of the initial capacity, the car's endurance will be significantly reduced and need to be replaced. How short is the battery life of most electric vehicles? With the current level of technology, lithium batteries can be used in electric vehicles for three to five years. There are many factors that affect the battery life of electric vehicles, including: (1) The battery working environment temperature. Both high temperature and low temperature will affect the battery life; (2) the battery charging and discharging method. High-current charging and discharging will also reduce battery life; (3) Battery charging status, overcharge, and overdischarge will all have an impact on battery life. In addition, the consistency of the battery and the difference in the working environment will affect the life of the automotive power lithium-ion battery. A good way to improve battery life 1. Try not to charge 100%. Generally speaking, the best charging range for lithium batteries is 30% to 80%. For example, Nissan sells leaf electric cars, which require users to stop charging when the battery reaches 80%. This may reduce the car's mileage, but can extend battery life. In addition, leaving a certain battery capacity can be used as energy recovery during electric vehicle braking, because if the battery is fully charged or nearly fully charged, in order to prevent the battery from overcharging, the braking energy recovery will be stopped. 2. Regarding pure electric vehicles, try to prevent completely zero emissions. Lithium batteries are more suitable for partial discharge cycles rather than deep discharge cycles. Since lithium batteries have no recall effect, there is no need to worry about the impact of shallow charge and shallow discharge on battery life. The question consumers often ask is, how far can an electric car go? But try not to test your battery to see how far an electric car can go. 3. Regarding plug-in hybrid electric vehicles, under certain conditions, a climbing or closed electric form can be considered. Regarding plug-in hybrid vehicles, such as Toyota Prius or General Motors volt, the ability to switch to gasoline when the battery is low is due to the car’s battery handling system, which can shut down the battery in time to prevent deep battery cycling. However, if there is a longer climb on the planned route, please open the climbing window or close the electric window at least 20 minutes before climbing. 4. Use a charging system to reduce the high power of the battery. Generally speaking, lithium batteries are most stable when they are half-charged. Therefore, how to ensure that the battery meets travel requirements at the same time and keeps the battery status stable? Many electric vehicle manufacturers or charging facilities propose to use smart charging processors to delay charging to reduce the time of high battery status. The best way is to set the time to reach the required power state about 1 hour after departure. On the one hand, it can prevent accidental changes in the itinerary, on the other hand, it can also reduce the battery temperature before traveling (the latter can be ignored in winter because the charging temperature is conducive to low-temperature use). 4. However, there are exceptions. When the battery of an electric car is almost out of power, timely charging becomes more important. 5. In hot weather, try to park the car in the shade; when it is cold, try to park the car in the garage. Most electric vehicles have a heat treatment system to keep the battery temperature between -6°C and 30°C, which is very important for maintaining battery health. However, in a high temperature climate, if the heat treatment system is not turned off in the open parking, the vehicle battery may have exhausted its own cooling after a few hours. If the system is turned on for a few minutes after parking, the battery in the vehicle will gradually be heated by the surrounding environment. Both of these conditions will affect battery life. Another solution is to turn on the battery's heat treatment system to charge the car after parking in hot weather. This not only keeps the battery at an appropriate temperature, but also prevents deep discharge of the battery. 6. Plan for long-term parking in advance. 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. Previous: Lithium battery tab connection method