What is the waterproof rating of the BYD Han EV?
5 Answers
The waterproof rating of the BYD Han EV is IP54, which can meet normal waterproof requirements. Below is relevant information about automotive waterproof ratings: Definition: Taking IP54 as an example, the automotive waterproof rating indicator uses "IP" to represent the protection safety level. The first digit after "IP" indicates the solid particle protection level, while the second digit represents the liquid protection level. Current Status: Currently, most electric vehicles in China can achieve a protection level of IP67. Some new energy vehicle models can reach an actual wading depth of 70mm, with the maximum wading capability limit even approaching 1 meter in height.
I recently researched the waterproof performance of new energy vehicles. The BYD Han EV's battery pack has an IP67 waterproof rating. This IP67 rating means it can be submerged in 1 meter of water for 30 minutes without issues, which is considered the mainstream level for electric vehicles. There's no need to worry during heavy rain or car washes, as manufacturers have already taken these everyday scenarios into account during design. However, it's important to note that while the battery has good waterproofing, the overall vehicle sealing still has limitations. It's best to avoid driving through deep water when heavy rain or flooding exceeds the height of the tires. Speaking of which, my neighbor drove their new energy vehicle through deep water during a storm last month, and the motor malfunctioned the next day. The repair costs were significantly higher than those for fuel-powered vehicles.
The BYD Han EV uses a ternary lithium battery pack, and its IP67 waterproof rating is quite reliable. Specifically, a sealing layer is added to the chassis, and waterproof rubber rings are installed at various interfaces. During a recent visit to the 4S store for maintenance, the technician mentioned that every vehicle undergoes a high-pressure water gun test for sealing before leaving the factory. Daily driving generally doesn't pose any concerns regarding rainwater, whether during summer typhoons or when driving on muddy suburban roads. However, it's recommended to inspect the chassis sealing strips every two years or so, as aging rubber components can affect waterproofing. Additionally, I've noticed that when washing the car, it's best to avoid directly spraying water at the charging port. Although the interface has waterproof design, strong water flow might still cause seepage.
Electric vehicle owners should pay the most attention to the waterproof performance of the battery. The BYD Han EV battery pack supports IP67 waterproof rating, meaning it can withstand being submerged in 1 meter of water for 30 minutes without leakage. In actual driving, it can handle safe water levels below the tire height. However, three points should be noted: when wading, the speed should not exceed 8 km/h, otherwise water splashes may enter the engine compartment; prolonged immersion can still damage electronic components; if the wiring has been modified, the factory waterproof effect may be compromised. It is recommended that users in northern regions pay attention to road de-icer corrosion in winter and rinse the chassis promptly to protect the waterproof layer.
Last year, when I test-drove the BYD Han EV, I specifically asked about its waterproofing. The salesperson mentioned that the battery pack is fully sealed and passed a 30-minute immersion test in 1-meter-deep water, but the vehicle itself doesn’t have a specific waterproof rating. In actual use, I found it handles rainy conditions perfectly fine. A few days ago, during a typhoon, I drove it to the airport to pick someone up, and it navigated through flooded sections without any issues. It’s worth noting that half the height of the tires is the safety limit—exceeding this height increases the risk of water ingress. Daily maintenance is quite simple: when washing the car, ensure no water droplets remain in the door seal gaps; inspect the rubber components under the chassis every 5,000 kilometers; and avoid using high-pressure water jets to clean the engine bay, as some online videos suggest.
