Can electric vehicles be exposed to rain? What should I do if water gets into my electric vehicle?

With the arrival of hot summer weather, there will be more and more thunderstorms. We remind friends that when using electric vehicles for travel, you must be careful not to let your beloved car get wet in the rain, because it is very dangerous for electric vehicles to get wet in the rain. For detailed introduction, you can find out by opening the following content.

Contents of this article

1. Can electric vehicles be exposed to rain?

2. What to do if water enters the electric vehicle?

3. How to replace the battery of an electric car

Can electric vehicles be exposed to rain?

Rain can cause short circuits in the electric vehicle circuits. In mild cases, it can damage the external circuits of the controller: mainly the Hall line, the throttle line, and the main fire line. The open circuit is the power-off brake line. The most serious is the controller burnout. The protective measures are to check whether there is a circuit outside the circuit and wrap the controller with something.

There are two places where electric vehicles are most afraid of water:

1. Circuit of the head cover (find an object that can cover the front of the car to prevent water from flowing in.)

2. For the controller part, the waterproof part is usually installed at the site and does not need to be considered.

3. Battery connection wire (if the seal is not good, the battery will short-circuit)

So, just find a waterproof cloth that can cover the front of the car and the battery (it doesn’t matter if it’s a sealed battery inside).

If it is just raining, it generally has no effect on the circuit, but it is easy to cause the outer panel to change color. From the perspective of car maintenance, you can find something to cover the car. As for rainy days, the most important thing is to prevent water from entering the car, do not leave it in the rain for too long, and ride as slowly as possible. Some models have design defects that need to be solved by yourself using the previous method. Also, after being rained, put it in a ventilated place (avoid direct sunlight, the circuit will age quickly) and dry it as soon as possible to prevent the circuit from getting damp.

What should I do if the electric car is flooded?

1. Soak the battery in water and dry it before charging

Electric vehicles generally take a lot of waterproof measures, so it is not a big deal if they are wet by rain, but this does not mean that electric vehicles can "go" in the water at will. Hereby remind all car owners that if the electric vehicle battery is wet by rain, do not charge it immediately. Be sure to put the car in a ventilated place to dry it before charging.

2. The controller is easily short-circuited and out of control when it is immersed in water

Water entering the controller of an electric vehicle can easily cause the motor to reverse. After the electric vehicle has been severely soaked, the owner can remove the controller, wipe off the accumulated water inside, blow it dry with a hair dryer and then install it again. Note that after installation, it is best to wrap the controller with plastic to increase its waterproof ability.

3. When riding an electric bike through water, the water resistance is very large, which can easily cause loss of balance. It is very dangerous if you encounter a manhole cover that is pushed open by the water flow when riding on a flooded road. Therefore, if you encounter a flooded road, it is best to get off the bike and push it.

The reasons for these failures are usually the following:

First, the motor controller, although it is designed to be waterproof, is usually not very waterproof. The controller is prone to short circuit and loss of control when immersed in water. Water entering the controller of an electric vehicle can easily cause the motor to reverse, and in severe cases it may directly cause the controller to burn out.

Second, and more seriously, if water gets into the motor, a short circuit will occur at the joints, and if it is not dried, it can easily cause electric leakage and fire.

Third, if water gets into the battery box, it will directly cause a short circuit between the positive and negative poles. The minor consequence is damage to the battery, and the most serious consequence is directly causing the battery to burn out.

How to replace the battery of an electric car

Take out the battery pack from the battery, pay attention to the positive and negative poles when taking it out, cut the wires of the battery pack with scissors, replace the new battery, connect the positive and negative poles according to the original wiring sequence, and solder with an electric soldering iron.

Electric vehicles, also known as electric-driven vehicles, are divided into AC electric vehicles and DC electric vehicles. Electric vehicles are usually referred to as vehicles that use batteries as energy sources and convert electrical energy into mechanical energy through controllers, motors and other components to control the current size to change the speed of the vehicle.