Can electric car battery be repaired? What’s the operation?

Check storage battery shape is intact. Check if the battery case is protruding, leaking, breaking, battery terminal corrosion, etc. If there is such a phenomenon, the battery has been necrotic;

A better way to eliminate vulcanization in batteries is to use pulse repair. When repairing the battery, the instantaneous voltage of the pulse is generally based on the functional requirements embodied in the product. The instantaneous voltage is 60V-300V. For example, the pulse voltage value of the product used for battery life extension is not too large, especially for battery repair products. The pulse voltage value can be too large (if the pulse voltage value is too large, it will cause damage to the battery plate), the pulse voltage is high, the battery repair time is short, the pulse voltage is low, and the battery repair time is relatively long, although the pulse voltage is very high. However, the average voltage is not high, it is harmless to the human body and is very safe. Physically, any insulating layer can be broken down at a sufficiently high voltage. Once the insulating layer is broken down, the coarse lead sulfate will be in a conductive state. If a high voltage is applied to the high-resistivity insulation, large lead sulphate crystals can also be broken. If this high voltage is short enough and current is limited, the charging current is not large under the condition of breaking through the insulating layer, and a large amount of gassing is not formed. The strong gassing volume of the battery is positively related to the charging current and the charging time. If the pulse width is short enough and the duty ratio is large enough, under the condition of ensuring the breakdown of the coarse sulphate crystal, the simultaneous micro-charging cannot form the gassing. This achieves pulse elimination vulcanization.

The strong electric repair method is a method of repairing the battery by using a persistent high voltage or a large current during charging, and is often used when the effect of the pulse repair method is not obvious. First, the high voltage repair method: This method mainly uses the charging voltage of 1.3-1.5 times of the nominal voltage of the battery to repair the battery. For example, the 36V battery is charged by the 48V charger under the condition that the charging current is constant or close. The charging time should be mastered, it is not easy to be too long, otherwise the battery will be heated due to gassing. This method has a certain repairing effect on a battery with short circuit and low softening of the electrode plate, but improper use may also cause damage to the pressure plate of the battery plate. Second, the high current repair method: This method is mainly to use a charging current 1.5-2.0 times higher than the usual charging current to repair the battery, such as 20AH battery using 3-4A charger for charging, pros and cons and "high voltage repair The law is the same.

First open the cover on the battery, because the glue is usually opened and the cover is broken.

There are 6 small holes in the inside, covered with a rubber cap, and take it away with the surrounding white absorbent cotton.

Teach you how to repair the battery!

Use the injection syringe, add about 25 ml of replenishing solution to each small hole (depending on the lack of liquid in the personal battery, be careful not to exceed the upper plate or the liquid inside the charging will be full, because the liquid will boil when charging, plus If you have more, you will get back.) Pay attention to the ventilation of the holes, otherwise you will not be able to add them.

Teach you how to repair the battery!

Dry the surrounding leaks, restore the cap, and absorb the cotton. Wrap the battery in tape. At this point, your battery can be used for another two years. OK!

Battery repair is OK. The battery repair equipment can perfectly repair the vulcanization phenomenon of the battery, so that the battery capacity can be recovered from the new one and the battery life can be extended.

Battery refurbishment is also possible. In fact, battery refurbishment has already existed in large-scale battery manufacturers. For example, some battery production staff's mistakes caused leakage of battery clusters, etc., such batteries need to be, after breaking the shell, re-weld the new cluster and install a new battery casing. Inside, this completes the refurbishment of the battery.

2. Fill each well with distilled water with a syringe. If 1.28 standard electrolyte is added, the plate may burn out due to excessive acid solubility. For example, when we eat hot pot, why do we eat more salty? That is to say, when water evaporates, salt does not evaporate through water vapor. For the same reason, the acid in the battery will not be evaporated. It's water, so we just need to add about 20-30ml of distilled water to each hole. as the picture shows:

Electric vehicle battery repair method, battery maintenance method [Review]

3. After filling up, let the battery stand still for half an hour, so that the sponge around the plate fully absorbs water. Then use the resistor discharge to discharge all the electricity in the battery. If there is no resistance, you can use a 12v bulb instead. For example, motorcycle headlights and car turn signals can be used as long as they can discharge to 0v. . How to judge that the battery is almost out of power, the cement resistor is discharged at the beginning of the resistor body, slowly and gradually not hot, then the battery will be out of power. If the light bulb is too direct, as long as the light is slowly turned off, it means that the battery discharge is over. The discharge time depends on the capacity of the battery when it is discharged. We can first maintain the battery when it is not powered. This can shorten the discharge time.

Electric vehicle battery repair method, battery maintenance method [Review]

4. Charge the battery after the end of the discharge. The pulse charging method can be used under the condition that the pulse charging method can effectively remove the vulcanization of the electrode plate and improve the capacity of the battery. No one can replace it with a car charger. As shown in the figure: (charge the battery) Take pulse charging as an example.

Electric vehicle battery repair method, battery maintenance method [Review]

5. After charging is completed, use a syringe to withdraw excess water from each well. A total of 6 holes, completed step by step. Figure:

Electric vehicle battery repair method, battery maintenance method [Review]

6, cover the hat and cover, you can use the car.

Electric car battery maintenance method

1. When charging the electric vehicle battery, especially for the first time, be sure not to completely exhaust the battery inside the battery and then charge it. Keep a certain amount of remaining battery inside the battery so that it does not cause the battery.

2. When charging the electric vehicle battery, be sure to wait until the indicator light of the charger reaches saturation to end the charging. It takes about 8 hours to fully charge the battery, so that the battery can be charged to improve the battery life.

3, to ensure that the battery charging of electric vehicles should be full, but also pay attention to not charging too long, sometimes when you forget to disconnect the charger, always this is a bad thing for the battery, so easy to put The battery is fully charged.

4, the battery should pay attention to let there always have a certain amount of electrical energy, especially for some electric vehicles that are not used frequently, the battery will be automatically discharged for a long time, so you should check the battery's power at any time to charge, do not The battery is depleted for a long time, which will affect the battery's storage capacity.

5. There is also a special charger when charging the electric vehicle battery. Do not use other brands of chargers casually. Using the charger indiscriminately can damage the battery.

6, the last must be to pay attention to the discharge of the battery, once the water inside the battery will cause the battery to be short-circuited. In rainy weather, it is best not to ride an electric car. If you must ride, use plastic to seal the battery to prevent water from entering, thus preventing the battery from entering the water.