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Clean the blade battery cooling duct of BYD cars regularly.
Time : 2025-12-10
The blade battery is one of the core highlights of BYD cars, known for its safety, durability, and long lifespan. But to keep this key component performing at its best, regular maintenance of its cooling duct is essential. The cooling duct plays a vital role in dissipating heat from the blade battery—preventing overheating during charging, acceleration, or long drives. Over time, dust, leaves, insects, and road debris can clog the duct, reducing cooling efficiency and putting extra stress on the battery. For BYD cars owners, cleaning the blade battery cooling duct regularly isn’t just a minor chore—it’s a simple way to protect the battery, extend its lifespan, and maintain the vehicle’s overall performance. Let’s explore why this cleaning matters and how to do it properly.
Why Cleaning the Blade Battery Cooling Duct Matters for BYD Cars
BYD cars’ blade battery relies on a efficient cooling system to stay within its optimal operating temperature range (usually 20°C to 40°C). The cooling duct draws in cool air from the outside and circulates it around the battery cells, carrying away excess heat. When the duct is clogged, airflow is restricted, and heat can’t escape effectively. This leads to several problems: first, the battery may overheat, which degrades lithium-ion cells over time and reduces their capacity—meaning shorter driving range for your BYD car. Second, overheating can trigger the vehicle’s thermal protection system, limiting power output or even preventing fast charging to avoid damage. Third, a clogged duct forces the cooling fan to work harder, increasing energy consumption and wearing out the fan prematurely. For BYD cars, a clean cooling duct ensures the blade battery stays cool, efficient, and safe—preserving its performance for years. Unlike temporary fixes, regular cleaning addresses the root cause of heat buildup, making it a critical part of BYD car maintenance.
Locate the Blade Battery Cooling Duct in BYD Cars
Before cleaning, you need to find where the blade battery cooling duct is located in your BYD car. The exact position varies slightly by model—for example, in BYD Han, the main duct intake is usually at the front of the vehicle, near the lower grille or bumper. In BYD Dolphin or Yuan Plus, it may be located on the underbody or near the rear wheel wells (refer to your BYD car’s owner’s manual for precise instructions). Look for small grille-like openings or vents—these are the entry points of the cooling duct. Some BYD models have a removable cover over the duct intake to prevent large debris from entering, while others have a mesh screen that traps particles. Take a moment to inspect the area around the duct—you may already see visible debris like leaves or bugs stuck in the grille. Knowing the duct’s location helps you target your cleaning efforts and avoid damaging other components of your BYD car.
Tools Needed for Safe Cleaning of BYD Cars’ Cooling Duct
Cleaning the blade battery cooling duct of BYD cars doesn’t require specialized tools—most items you already have at home will work. Here’s what you’ll need: a soft-bristled brush (like a toothbrush or small paintbrush) to gently remove debris, a handheld vacuum cleaner with a narrow nozzle to suck up dust and small particles, a garden hose with a low-pressure setting (or a spray bottle filled with water) to rinse away stubborn dirt, and a clean cloth to wipe down the area. Avoid using high-pressure water guns, sharp tools (like screwdrivers or knives), or abrasive cleaners—these can damage the duct’s mesh screen, plastic components, or even the battery itself. For BYD cars, gentle cleaning is key—you want to remove debris without scratching or breaking any parts of the cooling system. If you’re unsure about a tool, check your owner’s manual or consult a BYD service technician to avoid mistakes.
Step-by-Step Guide to Cleaning the Cooling Duct
Follow these simple steps to clean the blade battery cooling duct of your BYD car safely and effectively:
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Prepare your BYD car: Turn off the engine, engage the parking brake, and let the vehicle cool down completely (never clean the duct while the battery is hot or the car is running). If your model has a removable duct cover, use a screwdriver (if needed) to gently take it off—be careful not to strip the screws.
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Remove large debris: Use the soft-bristled brush to gently sweep away leaves, twigs, insects, or other large particles from the duct intake and mesh screen. Brush in one direction (from inside out) to avoid pushing debris deeper into the duct. For stuck-on debris like dried mud or bug carcasses, use a damp cloth to wipe them away—don’t scrub hard, as this can damage the mesh.
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Vacuum small particles: Use the handheld vacuum with the narrow nozzle to suck up dust, sand, and small debris that the brush couldn’t remove. Hold the nozzle close to the duct intake to capture as much dust as possible—this prevents particles from being blown into the battery compartment.
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Rinse (if needed): If the duct is still dirty, use the garden hose on low pressure or a spray bottle to lightly rinse the intake. Spray from the outside in, using a gentle stream of water to wash away remaining dirt. Never use high pressure, as this can force water into the battery compartment or damage the duct’s internal components.
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Dry and reassemble: Use a clean cloth to dry the area around the duct intake thoroughly—moisture can cause corrosion if left on metal parts. If you removed a cover, reattach it securely. Start your BYD car and let it run for a few minutes to ensure the cooling fan works normally and airflow is restored.
How Often to Clean and Additional Tips for BYD Cars
The frequency of cleaning depends on where you drive your BYD car. If you often drive on dirt roads, in rural areas, or in places with lots of trees (where leaves and debris are common), clean the duct every 3-6 months. For city driving with mostly paved roads, cleaning every 6-12 months is usually sufficient. Additionally, check the duct after extreme weather (like heavy rain, storms, or sandstorms) or long trips—these can bring a sudden buildup of debris. Here are some extra tips for BYD cars owners:
- Avoid parking your BYD car under trees for long periods—this reduces the chance of leaves, twigs, or bird droppings clogging the duct.
- If you notice your BYD car’s battery is charging slower than usual, or the range has dropped significantly, check the cooling duct first—it may be clogged.
- During routine maintenance at a BYD service center, ask the technician to inspect and clean the cooling duct as part of the service—they have specialized tools to reach deeper into the duct if needed.
- Never ignore warning lights related to the battery or cooling system—if your BYD car’s dashboard shows a battery temperature warning, have the duct and cooling system checked immediately.
In conclusion, cleaning the blade battery cooling duct regularly is a simple yet effective way to maintain your BYD car’s performance and protect its valuable blade battery. By understanding why the cleaning matters, locating the duct, using the right tools, following the step-by-step guide, and sticking to a regular schedule, you can ensure the cooling system works efficiently for years. For BYD cars owners, this small maintenance task pays off in longer battery life, consistent range, and peace of mind—knowing your vehicle’s core component is well-protected. Whether you’re a new BYD owner or have been driving your car for years, making duct cleaning a habit is one of the best ways to get the most out of your vehicle.
