Don't change the battery of an electric car if you are starving!

As a short-distance transportation for families, electric vehicles play a very important role for every family, especially for short-distance commuting to get off work or shopping, and sending children to and from school are extremely convenient. But there is a question that has been perplexing everyone. Usually, some people usually put their electric cars for a long time due to going out or working, or in winter, when the weather is extremely cold, many people park their electric cars and do not charge them in time. It causes the battery to be charged again, but the battery cannot be charged in any way. In this case, the battery is starved to death. How should I solve this situation? I encountered this special case today. How to use the easiest way to activate the battery and repair it? Looking down on the specific operation, it may give you a surprise. You don't have to pay to replace the battery with a new one. 01 The battery will self-discharge when it is placed. Many people don’t know that the battery will not be used for riding an electric car. After a few months of storage, there will be no electricity at all. When the key is turned on, the display light will not light up. There is no explanation at all. In this case, you should plug in the charger according to the usual method. The charger's light is always green or flashing, and does not turn to red. There is no response after charging for two days. What to do in this situation? The owner will push to the repair shop for further inspection and maintenance. When we encounter this situation, if the voltage capacity is 0V or below 20V, there will be two results for this battery. 0V batteries may not be repaired, and most of the voltage batteries can be repaired. There are two situations when you park your car. Some people charge it once every two months, and most people don’t charge it directly. They don’t have this awareness at all. They always think that the static discharge of the battery will not decrease. This is the first time they have reached this situation, so they have no experience. When the battery is placed, the active material inside the battery will still produce physical and chemical effects, and a certain amount of loss will occur. As time goes by, this loss will increase and the power will be lost. This phenomenon is actually encountered in normal life. For example, some less commonly used lamps, mobile phones or other products with batteries will be out of power after a period of time, or even the battery will bulge up and spit out acid directly. Scrap, in fact, lead-acid batteries for electric vehicles will also have this problem. 02 How to repair the battery if the battery is defective, the battery can't be charged, so don't rush to replace the battery. Let me talk about the first method is very simple. If possible, go to the repair shop to check the voltage and capacitance. If it is more than ten volts or tens of volts, the charger will not charge because the voltage is too low and protected. Find a fast charging station for electric vehicles on the side of the road. Just throw two coins to make the electric vehicle battery slowly charge up from 12V. At 12 minutes, the voltage display of the charging station is 29V, in order to give the owner an intuitive judgment. , You can unplug the power supply of the charging station. Open the battery box of the electric car to check that the battery is not charged or damaged. If the original car charger is plugged into the power supply, it still does not charge, or the green light is displayed, it means that the charger still cannot be automatically recognized, and the voltage is too low or it cannot work normally. At this time, the charger is not working properly, so the second method is adopted, and 80% of the starved batteries can be repaired by this method. How to fix it? The first is to remove the connecting wires of the 4 batteries, take out the battery, connect the positive pole to the positive pole in series, and the negative pole to the negative pole, so we use a 12V charger, charge it for more than two hours, and then use the 48V The charger is de-charged. After charging with a 12V charger for 20 minutes, the voltage has risen to 12.98V, which is not much different from the 13V voltage. Let's continue charging for a while, and then charge for another hour. Let's see if the voltage can rise to more than 13V. Install it on an electric vehicle and use the original 48V charger to charge it, and it will work directly. After charging for an hour, disconnect the charger from the power supply, and then remove the clip on the battery. Its air voltage is 11V. At this time, you can use a multimeter to detect whether the voltage of the four batteries has risen to 11V. After detecting that all four batteries have risen to 11V, remove the battery cable and install it on the electric vehicle. At this time, pay attention. At this time, the cable connection method is the same as the original battery connection method, and they are connected in series. When installed, you can turn on the power, see the display has electricity, and rotate the speed to start slowly, which means that the voltage has been up, and then plug in the charger to charge normally, and you can ride normally when fully charged. 03 Starved to death of the batteries, these types of irreparable methods have just done a detailed analysis of the two repair methods, as long as the battery has not been left for too long and there is a voltage above 10V, 85% of the batteries can be repaired by these two methods. Come, try to repair with the first method, you can use the second method. You must pay attention to the following types of batteries, which may not be repaired, and repaired in time may not be durable. For example, if the battery is charged or damaged, the storage time is too long, and the test is a 0-volt voltage capacitor, and the battery has been used for too long, and the service life has reached the end. In this case, the battery has no repair value. If the repair attempt does not respond, just replace it. In short, only the battery that can be repaired depends on the condition of the battery, the time of use, and the state of the battery. This is a prerequisite for repairing the battery. If the aforementioned states occur, the battery has no repair value and can be replaced directly. Disclaimer: Some pictures and content of articles published on this site are from the Internet. If there is any infringement, please contact to delete. Previous: What are the core parameters of rechargeable lithium batteries?