What does BYD's lifetime warranty on battery cells mean?
2 Answers
BYD's lifetime warranty on battery cells means that non-man-made damage to the battery cells before the vehicle is scrapped can be replaced free of charge. It should be noted that the power battery includes battery cells but also other components, so the lifetime warranty on battery cells does not mean a lifetime warranty on the entire battery. Warranty details: The battery cells have a lifetime warranty, while the power battery has a clearly defined warranty of 8 years or 150,000 kilometers. If the power battery experiences abnormal issues within 8 years or 150,000 kilometers due to non-man-made reasons, you can request the 4S store to replace it free of charge. Abnormalities here include battery range degradation. Currently, all power batteries on the market will experience varying degrees of degradation over time. According to BYD's practice, if the battery of a BYD new energy vehicle degrades by more than 20%, it can be tested at a 4S store. If the test confirms the degradation, the power battery can be replaced free of charge within the warranty period. For BYD's electric vehicles used as taxis or ride-hailing vehicles, the warranty period is extended significantly, up to a maximum of 500,000 kilometers. If the power battery exceeds the warranty period, the battery cells are still covered by the lifetime warranty, but currently, almost no new energy vehicles have exceeded this period.
As a long-time BYD owner, let me explain the lifetime warranty. Simply put, BYD promises to repair or replace free of charge the battery cells—the basic units of the power battery—if they fail under normal use. This policy applies only to the first owner, meaning you must be the original purchaser and cannot transfer it; you must also maintain the vehicle at official service centers on schedule and keep complete records. The long lifespan of the battery cells can save you a lot of money, as replacing the entire battery can cost tens of thousands. I think this is great—it shows BYD's confidence in its technology and helps ease concerns about the reliability of electric vehicles. Just remember to check the details when buying, like what damages are covered, to avoid disputes.
