Tesla Model Y is equipped with a ternary lithium battery pack, with a warranty of 8 years or 192,000 kilometers, whichever comes first, and at least 70% of the battery capacity will be retained during the warranty period. For pure electric vehicles, the battery pack is the largest loss component, and the rest basically does not require any maintenance. However, many people are wondering why Tesla battery cells cannot have lifetime warranty like domestic electric vehicles, so they also have some questions about the battery maintenance policy.
Studies have shown that the current ternary lithium battery pack has a lifespan of about 8 years/300,000-500,000 kilometers. If the battery is not damaged by external force, there is no problem. According to the annual mileage, some cars only drive 15,000 kilometers per year, and the warranty of 192,000 kilometers is enough to drive for 12 years. If you drive 30,000 kilometers per year, you can also guarantee a 6-year warranty. So there is no need to worry too much about 8 years/192,000 kilometers.
Regarding the reason why Tesla dares not provide a lifetime warranty for battery cells like its own brands, some people think that Tesla's battery cell supplier Panasonic is a tough guy. Panasonic provides Tesla with a very high energy density nickel-cobalt-aluminum ternary lithium battery. This battery pack has a high energy density that allows electric vehicles to achieve longer range and higher manufacturing costs. However, too high nickel ratio will cause unstable crystal structure, and the battery cell group will experience a decline in stability as the use time extends. The probability of various problems occurring in the later stage is relatively high, so Tesla only provides regular warranty services.
After driving for 8 years or driving 192,000 kilometers, has it really been abandoned by Tesla? Such remarks cannot stand firm. Think about it, Tesla's models are all based on intelligence. Even if they can upgrade software, pure electric cars in ten years will probably have a difference between heaven and earth from today's electric cars. This is like the Apple phone ten years ago and the current models. The Apple phone ten years ago can still be used until now, but who is willing to use it?
can't just talk about the battery issue, but ignore the vehicle hardware. We don't know whether today's hardware can drive software ten years later. The car system in seven or eight years later is probably already broken. For electric cars, especially Tesla, the car computer is the soul. Although Tesla's hardware official says it can be replaced, the warranty time for the battery pack is not a question of whether it can be opened, but a question of whether you are willing to open it. A friend saw a video online in which the protagonist rented an eight-year-old Model S. The biggest problem he had in driving this old car was not the battery, but the car machine. Anything you click will be stuck, and will crash . The driving experience is like using an outdated mobile phone that is very low. At that time, you may have to upgrade the chip and memory while changing the battery.
Summary:
Tesla Model Y's battery maintenance policy is actually not to worry about. Whether to buy Tesla or not depends on the wallet.
This article is original by Che Dabai. If there is any plagiarism, legal responsibility will be pursued in accordance with the law.
(Operational Personnel: He Shuguang)
