What is the battery degradation of a Tesla after 7 years?
2 Answers
After 7 years, the maximum battery degradation of a Tesla does not exceed 30%. Here is the warranty information about electric vehicle batteries: 1. National regulations: Electric vehicles should provide an 8-year or 150,000-kilometer warranty for the battery, and the battery degradation during the warranty period should not exceed 30%. Tesla has made a product quality guarantee commitment for the power battery and drive assembly. If there is a serious degradation problem during the battery warranty period, the replacement is free. 2. Warranty period: The Tesla Model 3 equipped with a standard range or medium range battery has a warranty period of 8 years or 160,000 kilometers for the battery and drive assembly, and the battery capacity is guaranteed to be at least 70% during the warranty period.
My Tesla has been driven for a full 7 years, and the battery degradation is roughly between 12% to 15%, varying based on my daily commuting habits and charging methods. I'm the type who drives gently, charging two to three times a week, mostly slow charging at home, and rarely using fast-charging stations. Battery health is actually influenced by many factors, like the high temperatures in southern summers, which can accelerate battery degradation, so I make sure to park in the shade. Tesla's app has a battery report feature that allows real-time monitoring of remaining capacity, which is very convenient. If degradation exceeds 20%, it might affect the range—I can still manage around 300 kilometers now, which is barely sufficient. I recommend getting a check-up at the service center every six months to prevent unexpected issues, after all, the battery is the core part of an electric vehicle.
