How long does Tesla battery life typically last? How often does Tesla change batteries

Tesla generally has a battery life of more than 8 years. Currently, Tesla is equipped with battery packs consisting of lithium ternary batteries and lithium iron phosphate batteries. The theoretical cycle times of lithium ternary batteries are about 3500 times, and the actual cycle times are about 2000 times; The theoretical cycle number of lithium iron phosphate batteries is 5000 times, and the actual battery life is about 3000 times.
Taking a ternary lithium battery with relatively few cycles as an example, assuming that a Tesla has a full charge range of 400 kilometers, the battery pack will only have 2000 cycles after the total mileage of the vehicle reaches 800000 kilometers. At this time, the battery can generally maintain 50% to 70% of its battery capacity, and as long as it is recharged slightly frequently, the car can still be used as usual.
According to relevant statistics, the average annual driving mileage of urban household users is around 20000 kilometers. If you want to drive the total mileage of your car to 800000 kilometers, it will theoretically take 40 years. Even if the car owner's driving environment is harsh and the daily driving intensity is high, it can still be used for 20 years at a half discount for 40 years.
In the era of rapid iteration of automobile models, even if a car has been driven for 20 years, there are very few people who can persist in driving it for ten to eight years without selling it. Therefore, everyone does not need to worry about the battery life of Tesla. What's more, Tesla has officially introduced an 8-year battery warranty for consumers. If there is a quality problem with the battery midway, the official provides free repair or replacement services.
Of course, there is no standard answer to how often Tesla changes its batteries. After all, different users have different vehicle environments, and the degree of maintenance they provide to their vehicles varies. Generally speaking, vehicles that drive Tesla's high intensity running drips, drive violently, and use inferior charging guns will have a shorter battery life, and may need to replace the battery in less than eight years.
In addition, if there has been a serious collision accident during the use of the vehicle, resulting in wear and failure of the battery, the service life of the battery may also be greatly reduced. Therefore, the above battery life is for reference only, and the actual service life of the vehicle should be based on the actual situation.
Tesla Battery Warranty Policy
1. Tesla provides an 8-year or 240000 km warranty policy for Model S and Model X models, whichever comes first. At least 70% of the battery capacity must be retained during the warranty period.
2. The battery warranty period for Model 3 and Model Y for the Standard Mileage version and the Standard Mileage+version is 8 years or 160000 kilometers. During the warranty period, at least 70% of the battery capacity must be retained, whichever comes first.
3. The battery warranty period for the Long Mileage or High Performance Models 3 and Y is 8 years or 192000 kilometers, whichever comes first, while maintaining 70% of the battery capacity during the warranty period.