How to activate if the battery is not charged? Can the car battery not be charged with electricity to repair?

It is a very common thing in our lives that the battery cannot be charged. The battery cannot be charged because the electric vehicle is not riding for a long time, and the battery cannot be used due to long-term loss of power, so the battery cannot be charged. How to activate it after power-in? In this article, the editor of Xianji.com will analyze how to activate the battery if the battery is not charged. Will the car battery be charged and repair it? Let's take a look. How to activate if the battery is not charged? How to activate if the battery is not charged? The following is a summary of a few activation methods for the battery if the battery is not charged: How to activate the battery if the battery is not charged 1. Connect a good battery in parallel and charge it with a charger. The operation is based on your own battery number, find a good car with the same battery, strip the red wire behind the charging port and connect the red wire, the black wire to the black wire, and then plug the charger into the good electric car and charge it for 20 minutes. Observe the battery Is it hot? If it is hot, unplug the charger and stop it for 1 hour and charge it again for 20 minutes, so that it can be charged normally by cycling 3 times and then using your own charger. However, it should be noted that it cannot be charged for more than 4 hours, and then charged in 2 times, so that it can be used normally. How to activate the battery if it can’t be charged? 2. First check if the battery is short of water. If there is no water, add distilled water, charge with 1/10 of the rated charging current until overflowing, and then discharge with 1/10 of the rated capacity until After putting it out, it can be repaired after three or four cycles. How to activate the battery without charging? 3. Use a high-power charger, charge with high current, don’t charge the battery when it is hot, continue to charge after the temperature drops, continue to continue for 2 to 3 days and repeat several times, there is a certain Probability can be activated. However, all of the above are only suitable for relatively new batteries. If it is an old battery, it will generally be reimbursed. After all, the battery life will be shortened by 80% if the battery loses electricity. Moreover, if the battery power loss is serious, then the activation of the battery will not be useful, and the charging problem can only be solved by changing the battery. Can the car battery be charged with electricity? The batteries used in the car are all lead-acid batteries. If it can't be charged, the important reason is the plate vulcanization. For batteries that have been used for a long time (more than three years), there is basically no value in repairing, just replace them with new ones; if it is a battery that has been used for a short time, the plate will be light due to excessive discharge in a short time. The degree of vulcanization can be repaired by desulfurization and charging, but the capacity of the battery can only be restored to about 80% of the rated capacity. Battery vulcanization refers to the phenomenon that too much lead sulfate is deposited on the electrode plate inside the battery, which causes the internal resistance of the battery to increase and the capacity of the battery to decrease. Its performance is that the voltage of the battery drops sharply when the battery is discharged; while the voltage rises quickly during charging, the temperature of the battery rises rapidly, but the density increases slowly, and bubbles are formed prematurely, even when they are charged. For example, when the car is started, the first stroke is very powerful, and then the starter cannot be driven, or the car cannot be started after being parked for more than a day, etc. If you use a voltmeter to measure the voltage of the battery when you start the car, you will find that the voltage of the battery quickly drops below 10V. Such a battery can basically be judged as vulcanized. The important reason for battery vulcanization is short-term high-current discharge, such as repeatedly starting the engine, listening to music for a long time after parking, and using lights. Regarding the lightly vulcanized battery, it can be recovered by charging with a small current for a long time. Regarding the severely vulcanized battery, it is more troublesome to repair. To discharge all the electrolyte in the battery, clean it with distilled water, add distilled water, and charge it with a small current for a long time. When the density of the electrolyte rises to a certain value, release the electrolyte and add distilled water to continue charging. After repeating this two or three times, the density of the electrolyte no longer rises, and then discharge with a certain current, and then continue to charge. This charging and discharging process takes two to three times, and then adjust the density of the electrolyte to an appropriate value, and the battery is basically repaired. It can be seen that it is very troublesome to repair a vulcanized battery. On the one hand, it requires some professional equipment and professional knowledge. On the other hand, it takes a very long time, which takes two or three days. Pay attention to safety during the operation. The important component of the electrolyte is sulfuric acid, which is highly corrosive. Hydrogen and oxygen will be released during the charging process, and there is a danger of fire and explosion when encountering sparks. My personal suggestion is to replace the battery with serious vulcanization. If you want to repair it, you must find a professional store to solve it. Don't do it yourself. The above is how to activate the battery if the battery is not charged by the editor of Xianji.com. I hope you can provide reference and help. I would like to remind everyone if the electric car is not used for a long time. , It is best to place the overflowing electricity.