What Are the Conditions for BYD's Battery Lifetime Warranty?
3 Answers
Lifetime warranty applies to the cells of the power battery. It means that if the battery's range degrades during the warranty period, it can be repaired or replaced free of charge. Below are the relevant details: 1. BYD: BYD is a Chinese automotive brand founded in 1995, primarily manufacturing commercial and family cars as well as batteries. Starting with a team of just over 20 people, BYD grew into the world's second-largest rechargeable battery manufacturer by 2003, the same year it established BYD Auto. BYD Auto follows a development path of independent R&D, production, and branding, aiming to create truly affordable vehicles for the masses. 2. Car Battery: The battery is an essential part of a car and can be divided into traditional lead-acid batteries and maintenance-free batteries. Since the battery uses a lead-calcium alloy for its grid frame, water decomposition during charging is minimal, and water evaporation is low. Additionally, the sealed structure of the casing releases very little sulfuric acid gas. Compared to traditional batteries, it offers advantages such as no need to add any liquid, easy connection to terminals, and long power storage duration.
As someone who frequently researches electric vehicles, I'm quite familiar with BYD's battery lifetime warranty conditions. It requires that you must be the first owner, meaning you cannot be a second-hand buyer; the vehicle must be used for private purposes, such as family commuting, and cannot be used for commercial operations like taxis; all maintenance must be completed at BYD's 4S stores or authorized service points—skipping even one session poses a significant risk; the warranty only covers battery capacity degradation below 70% or internal quality issues, excluding damage from accidents or modifications. These conditions are designed to protect BYD's investment while encouraging owners to maintain their batteries properly. I recommend new owners develop a habit of regular maintenance, such as inspections every six months, and keep records to avoid warranty voidance. It's also important to avoid overloading or deep discharging, as this can extend battery life.
When I first bought my BYD car, it took me some time to understand the warranty. The key points are: you must be the first owner, and the car cannot be resold; the car cannot be used for taxis or cargo transportation, only for private use; maintenance must be done at official BYD service centers, avoid roadside shops; the battery will only be replaced for free if its capacity drops to 70%. These rules ensure the warranty isn’t abused, and as a regular owner, I just stick to regular maintenance to save money. Also, I learned that missing even one maintenance session could void the warranty, so it’s best to set reminders on your phone calendar. The new car comes with a manual that details all the conditions—I recommend new owners read it carefully to avoid regrets later.
