Is the BYD Song Battery Covered by a Lifetime Replacement Policy?
4 Answers
BYD Song's battery does not come with a lifetime replacement policy. Regarding the warranty for BYD Song's battery, BYD offers a six-year or 150,000-kilometer warranty for the entire vehicle. For the fuel power system in pure fuel vehicles, the warranty is four years or 100,000 kilometers, while plug-in hybrid vehicles enjoy a six-year or 150,000-kilometer warranty. However, the battery cells are covered by a lifetime replacement service. Below is an extended introduction: 1. Introduction to Battery Cells: The so-called battery cells refer to the individual cells within the entire battery pack. However, these cells are highly integrated into the battery pack, and 4S shops do not have the technical capability to replace individual cells. Therefore, what appears to be a cell replacement is actually a battery pack replacement. 2. Conditions for Battery Replacement: According to BYD's battery replacement standards, when the battery degrades to a certain percentage, approximately around 66%, it may be considered for replacement. The vehicle needs to be taken to a 4S shop for inspection. If it meets the replacement criteria, the manufacturer will send a new battery for replacement.
I've been repairing cars for over a decade and often encounter new energy vehicle owners asking about BYD battery issues. For the BYD Song model, the battery does come with a so-called lifetime warranty, but it's not an unconditional lifetime replacement policy. The policy generally only applies to the first owner when the vehicle is used for private purposes, and the battery capacity must degrade below 70% or have quality issues to qualify for a free replacement. With normal usage, the battery lifespan of 8 to 10 years isn't a problem. I recommend owners perform regular maintenance checks, such as avoiding deep discharges and prolonged parking in high-temperature environments, to extend battery life. If the battery experiences normal wear but doesn't meet the replacement threshold, the warranty won't cover it, and repairs will be out of pocket. When purchasing a new car, it's crucial to carefully review the contract details and preferably contact the 4S dealership to confirm specific terms, so you don't find out you don't qualify when a problem arises.
As a car owner, I've been using the BYD Song for almost two years now, and the overall experience has been quite good. When I first bought the car, the salesperson mentioned that the battery comes with a lifetime warranty, which sounded extremely reassuring. However, upon deeper understanding, I realized it's not a free replacement at any time. There are quite a few policy restrictions—for instance, it only applies to the first owner who purchased the car from the original manufacturer, and it becomes void if the vehicle is used for ride-hailing or other commercial purposes. Additionally, battery degradation must meet certain standards before a replacement is granted. I monitor the battery health status via the app myself, avoiding overcharging and over-discharging to minimize issues. After consulting the dealer, they emphasized that the warranty is a basic safeguard for non-commercial use, and the actual probability of failure is low as long as routine maintenance is observed. After long-term use, I feel this policy is more of an insurance rather than a cure-all. Given the high cost of batteries, it saves both worries and potential expenses.
When considering buying a used BYD Song, I'm particularly concerned about the battery. The lifetime warranty may only apply to the first owner, and unless the contract is transferred, it becomes invalid for second-hand buyers. If the battery fails, replacing a new one could cost tens of thousands, so I need to carefully check the vehicle's history and the original contract. Through the dealer, I learned that the battery warranty has conditions: it must be a non-commercial vehicle, maintained by the original manufacturer, and only covers replacement if the degradation exceeds 70%. If the battery ages normally without meeting this standard, the cost falls on me. It's advisable to use diagnostic tools to check the battery's health before purchase or directly contact the original owner to confirm the warranty status, ensuring no unnecessary expenses. Doing thorough research can prevent major risks, as the battery is a critical component of new energy vehicles.
