Warm reminder: What should I do if my car has no power and cannot start?

1. Wire: This is a must-have item for car powering. Do not just use two wires to make do, because the instantaneous current when the vehicle is started can reach 200-600A, and even diesel vehicles can reach 200-600A. If calculated, 10 square meters of copper wire can ensure smooth and safe starting. Therefore, the car battery connecting wire must be purchased from a genuine brand with guaranteed quality, and do not try to be cheap. This is one of the essential items in the car. Once the battery is out of power, you can take it out and use it. You can also help others when you are not using it.

2. Emergency power supply: This is a new type of power bank-like thing. There are two types of lead-acid and polymer lithium batteries. It can help start vehicles that are running out of power, and it can also provide lighting, A multifunctional product that can be used to charge mobile phones and inflate cars with an air pump. And they are generally portable and very lightweight. If you have it, you don't have to ask others for help. Be sure to charge it in time after use to keep the battery sufficient to deal with emergencies.

3. Align it with the right one, connect it first: first turn off all the electrical equipment in the car, put the key in the off position, open the engine cover and find the battery. The positive and negative poles are written on the battery. Generally, the red "+" sign is the positive electrode, and there are usually two wires. At this time, take out the red one first, open the battery cover, pinch the clip on the head to firmly clamp the positive electrode of the electric car battery, and the other end The clip secures the positive terminal of the rescue vehicle battery. Be sure to connect the positive terminal first, then the negative terminal, do not reverse the order, and do not use the battery clamp to touch anywhere except the battery pile head.

4. Connect the negative to the negative, then the negative: After the red positive pole is connected, take out another wire and clamp it firmly to the negative pole of the electric car battery. The negative pole is usually a black "-" sign. Then pinch the other end of the clip, and keep the clip from touching other places from beginning to end. Clamp the negative terminal of the rescue vehicle battery firmly. Don't be afraid if sparks will pop out when connecting. This also means that you have connected it correctly. The reason why the negative electrode is not connected first is because the conductive parts of the iron in the entire vehicle are basically the negative electrode (also known as the "ground iron"). If the negative electrode is connected first, the clip will touch any conductive part of the car body when connecting the positive electrode. It will cause a short circuit and burn the parts on the car.

5. After starting the vehicle, first remove the load and then disassemble it: after the battery is connected, the rescue vehicle first starts the ignition to charge the battery, and then enters the vehicle without electricity and turns on the key. At this time, the instrument light will light up smoothly. , and then try to ignite (do not exceed 5 seconds). If it fails to start smoothly, lightly step on the accelerator of the rescue vehicle and keep the speed at about 2500 rpm. Then try ignition again without electric vehicle. If there is no problem with the starter and there is something in the car, It can usually start smoothly if there is oil. After starting the vehicle without electricity, first remove the negative electrode clip, and then remove the positive electrode clip. The reason is the same as the fourth reason why the negative electrode is connected afterwards.

The positive and negative poles of the battery must not be connected reversely. For safety, the assembly and disassembly sequence must be strictly followed: connect the positive first and then the negative, and remove the negative first and then the positive.