Can the battery still function properly after the vehicle is flooded

Can the battery still function properly after the vehicle is flooded



Recently, disastrous rainstorm weather occurred in many parts of the country, which led to waterlogging on roads and even floods, causing great losses to residents' personal property and safety. Here, Valta reminds you to reduce travel as much as possible in rainstorm and flood weather. If driving on waterlogged roads, remember to turn off the start stop function. If the vehicle stalls after wading into water, remember not to start it again, otherwise it will cause water to enter the engine, with serious consequences. It is recommended to contact the insurance company in a timely manner and wait for rescue.



Car batteries, as the only source of power for vehicle startup and low-voltage power supply, are of great concern to many car owners. Can the battery still function normally after the vehicle is involved in water? In fact, whether a car battery can be used normally mainly depends on whether there is water inside the battery. Once there is water inside the battery, it is not recommended to continue using it. The specific identification methods vary for different types of batteries.




If your car is equipped with an AGM battery, there is basically no risk of water ingress. Because the AGM battery adopts a closed valve controlled design, usually (especially in wading conditions), the AGM battery does not open for exhaust and is in a fully sealed state. Even if the vehicle is immersed in water, there is no risk of water ingress in the AGM battery. However, it is recommended that the vehicle go to a nearby store in a timely manner after wading in water, clean and dry the surface of the AGM battery, and then undergo professional battery health testing and end pillar maintenance before continuing to use.



If your vehicle is equipped with a regular rich liquid battery, you need to determine if the water level is below the battery top cover. If the water level is below the battery top cover, there is no risk of water ingress into the battery. If the water level does not exceed the top cover, it is recommended to replace the battery. Because the top cover of the battery has an exhaust hole, accumulated water will enter the interior of the battery through the exhaust hole after soaking in water. The accumulation of water mixed with various metals and trace elements can cause a short circuit in the battery and dilute the electrolyte, which has a significant impact on the performance and lifespan of the battery and poses a great safety hazard. It is recommended to replace the battery with a brand new one in a timely manner.