What happens when an electric vehicle battery gets wet?

[CeciliaFitz]

There are three main impacts when an electric vehicle is submerged in water: 1. Although the motor controller is designed to be waterproof, its water resistance is usually not particularly good. Water entering the controller may directly cause it to burn out. 2. If water enters the motor, it can cause a short circuit at the connection points, especially in cases of deep water submersion. 3. Water entering the battery compartment can directly cause a short circuit between the positive and negative terminals. The mild consequence is battery damage, while the most severe consequence could be the battery burning out or even exploding. Precautions after an electric vehicle gets wet: 1. Allow the battery to dry before charging. If the electric vehicle battery gets wet from rain, do not charge it immediately. Instead, place the vehicle in a ventilated area to dry before charging. 2. A wet controller is prone to short circuits and loss of control. Water entering the controller of an electric vehicle can easily cause the motor to reverse. After severe submersion, the owner can remove the controller, wipe out any accumulated water, and use a hairdryer to dry it thoroughly before reinstalling it.