Can BYD's battery be covered under warranty if the chassis is damaged?

[StJosiah]

No. Because the manufacturer will consider it as man-made damage, so refuse the warranty. BYD's battery warranty policy is as follows: 1. Lifetime warranty: At present, BYD's battery warranty policy is that the first individual owner (non-operating) has a lifetime warranty for the three-electric system, while the warranty policy for the whole vehicle is 6 years or 150,000 kilometers. For the three-electric system, BYD provides a lifetime warranty. 2. Battery replacement: According to BYD's three-guarantee regulations, the battery can only be replaced free of charge when the battery attenuation is abnormal. As for the standard of this decline, BYD has not yet given an official calculation method, and the state has not formulated relevant regulations. At present, the most common saying in the industry is that if the attenuation exceeds 30%, it will be replaced free of charge.

[Manuel]

As a BYD owner, I'd like to share my experience. Previously, my car's chassis was hit by a stone, causing battery failure. When I took it to the 4S store for inspection, they informed me that BYD's battery warranty only covers manufacturing issues, such as the battery failing on its own, and external impacts are not included. The warranty period is typically 8 years or 160,000 kilometers, but for man-made damages like impacts, the owner is responsible for repairs. This reminded me to be cautious of road conditions while driving, avoiding high-speed bumps or uneven roads. After an impact, battery issues might lead to leakage or even fire, which is particularly dangerous, so I recommend stopping immediately to inspect and not forcing the car to continue. If unsure whether it's covered by warranty, you can first take photos to document the damage and then contact a repair shop for diagnosis. Prevention is key—regular maintenance and using original parts can reduce accidents, ensuring long-term peace of mind and safety.

[StParker]

From a technical perspective, BYD's battery pack is located under the chassis, making it susceptible to physical damage such as shell cracks or wiring disruptions from impacts, which are not covered under the quality warranty. BYD's warranty only covers internal defects like rapid battery capacity degradation, while external factors including accidents require out-of-pocket repairs. After an impact, I recommend not delaying and immediately visiting a professional shop to scan the battery's condition with specialized equipment to prevent short circuits that could lead to bigger issues. Additionally, check other vehicle components such as the suspension for any collateral effects. Safe driving practices are essential to prolong battery life, so always be mindful of driving habits to avoid obstacles.

[WillowRose]

Want to save money on fixing battery damage from undercarriage impacts? BYD warranties usually don’t cover man-made damage, meaning you’ll have to pay for repairs or replacements out of pocket. Battery replacements are expensive, so I recommend first assessing the severity of the impact yourself. Minor issues like surface scratches might be fixable with simple solutions, but major damage requires a professional evaluation. If you have car insurance, filing a claim could cover part of the cost. Prevention is key—avoid speeding over rough roads and get regular undercarriage inspections for just a few bucks to avoid bigger expenses later. Ensuring your battery is hazard-free also protects driving safety, making it both economical and practical.

[VonHolden]

Safety always comes first! A chassis impact may cause damage to BYD's battery, leading to potential hazards. The warranty policy only covers issues related to manufacturing defects, not accidents. I must remind you to immediately stop the vehicle and turn off the power after an impact to prevent electric leakage or fire, then seek diagnosis from a professional repair shop. Although BYD offers an 8-year warranty, don't rely on it entirely. Avoid driving on rough roads during nighttime with low visibility. Preventive driving measures, such as slowing down when passing uneven road sections, can effectively reduce risks. Never underestimate minor impacts—ensuring long-term safety for your family's travels is what truly matters.

[DerekDella]

Analyzing BYD's warranty details: The battery is covered for 8 years or 160,000 kilometers, but explicitly excludes external impact damage such as undercarriage scrapes, which fall under accident categories and require out-of-pocket expenses. I suggest that after a scrape, don't count on the warranty—go directly to the 4S store for inspection to confirm the cause of damage, and check if insurance covers it. Daily driving should focus on road conditions; slowing down reduces impact and protects battery life, saving both money and hassle. From a safety perspective, even minor scrapes should be repaired to prevent hidden risks from worsening, and obeying traffic rules is the fundamental preventive measure.