BYD Qin EV450 stops charging when the charging fault light flashes. What happened?

1. wiring: this is a necessary item for the car to get electricity. Don't make do with two wires casually, because the instantaneous current when the car starts can reach 200-600A, and the diesel car even reaches 1000 A. If you calculate, the copper wire of10 square meter can ensure the smooth and safe start, so the car battery connecting wire must buy genuine brands with good quality. This is one of the necessary items in the car. Once the battery is dead, it can be taken out for use. You can also help others when not in use.

2. Emergency power supply: This is a new thing similar to charging treasure. There are two kinds of lead-acid batteries and li-polymer, which can help the car start when it loses power, and can also be used as multifunctional products for lighting, charging mobile phones and inflating cars with air pumps. And they are generally portable and light. With it, you don't have to ask others for help. Be sure to charge it in time after use and keep enough power to deal with emergencies.

3. Alignment: First turn off all electrical equipment in the car, turn the key to the OFF position, open the engine compartment cover to find the battery, which is written with positive and negative poles, usually the red number is the positive pole, and there are usually two cables. At this time, take out the red one first, open the battery cover, first pinch the clip to clamp the positive electrode of the battery without a car, and then clamp the positive electrode of the battery at the other end to save the car. Be sure to connect the positive electrode first and then the negative electrode. Don't reverse the order. Don't touch anywhere except the battery pile head of the battery clip.

4. Negative electrode, then negative electrode: After the red positive electrode is connected, take out another jumper. First, clamp the negative electrode of the car-free battery firmly. The negative electrode is usually black, and then hold the other end of the clamp to avoid touching other places from beginning to end. Clamp the negative electrode of the battery of the rescue vehicle firmly. Don't be afraid when connecting, which also shows that you are connected correctly. The reason why the negative electrode is not connected first is because the iron conductive part of the whole vehicle is basically the negative electrode, which is also commonly known as the ground. If the negative electrode is connected first, the clip will touch any conductive place on the car body when the positive electrode is connected, causing a short circuit and burning out the parts on the car.

5. After starting the vehicle, disassemble it first, and then disassemble it correctly: after connecting the battery, the rescue vehicle lights the battery first, and then no tram enters the vehicle to open the key. At this point, the instrument light will light up smoothly, and then try to light it for no more than 5 seconds. If it fails to start successfully, lightly step on the accelerator of the rescue vehicle, keep the rotation speed at about 2500 rpm, and then ignite again without the tram. If there is no problem with the starter and there is oil in the car, it can generally be ignited.

The positive and negative poles of the battery shall not be reversed. For the sake of safety, the disassembly sequence should also be carried out in strict accordance with the order of connecting the positive electrode first, then connecting the negative electrode, and then disassembling the negative electrode first.