Are Car Batteries Afraid of Rain?
2 Answers
Electric vehicle batteries are afraid of rain. The storage requirements for electric vehicle batteries are in an environment with a temperature of 25±5°C and humidity not exceeding 50%. During transportation, it is necessary to avoid the erosion of aluminum foil by air and water vapor. Although electric vehicle batteries are maintenance-free, after six months of use, as the water content continuously depletes, it can lead to sulfation and softening of the plates, resulting in a decrease in battery capacity or even failure. Precautions for charging electric vehicles: 1. Charge when the battery indicator shows one-third of the remaining power. 2. Keep the charging environment dry and tidy, and do not wrap the charger in plastic bags or bottles, as the charger can easily burn out when it cannot ventilate. 3. Try to avoid using fast charging, and if not necessary, do not exceed two times a month. 4. Place the charger in a fixed location and avoid collisions; even when carrying it, fully consider the potential for damage due to bumps. 5. Use the standard charger for charging.
I often drive in rainy weather and have noticed that car batteries are actually not afraid of getting wet, as their casings are sealed, preventing rainwater from entering the interior. During a heavy downpour, I checked the battery after parking—it was completely soaked but still started the car without any issues. A mechanic once told me that batteries are designed to be waterproof and dustproof. However, don’t overlook the terminals. If rainwater seeps in or accumulates over time, it can lead to corrosion and rust. If you notice greenish powder forming, clean it promptly to avoid short circuits or reduced lifespan. So, getting wet in the rain isn’t a problem itself, but it’s best to inspect the terminals afterward, keep them dry, and apply some anti-rust agent for maintenance. Regular upkeep can extend the battery’s service life.