How can electric car batteries be repaired by themselves?

Open the battery cover and remove the 6 helmets.

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 feel more and 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 evaporated water, so we just need to add about 20-30ml of distilled water to each.

Allow the battery to stand still for half an hour after filling up, allowing the sponge around the plate to absorb enough 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.

After the end of the discharge, the battery is charged, and 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 increase the capacity of the battery. Nothing can be replaced by a car charger.

(Charge the battery) Take pulse charging as an example.

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

Cover the hat and lid to load the car.

If the appearance of the battery is not damaged, bulging, no short circuit, no signs of disconnection, you can try to repair the battery by the following methods:

1. The battery is depolarized and charged by positive and negative pulse, and then completely discharged. This cycle is three times. If the capacity has signs of recovery, it can be cycled several times to achieve better repair effect.

2. Add water to repair, add water must add deionized water or pure water, do not add tap water, it will cause the battery self-discharge problem.

1. The battery is completely discharged first, because the internal acid density of the battery after discharge is basically 1.1g/ml or less;

2, take out the cover piece, and then remove the safety valve, pay attention to save, do not dirty the safety valve, for later use;

3, add water, generally 12AH battery a single grid of water is 8 ~ 10g, 20AH battery a single grid of water is about 15g;

4, stand for about an hour, install the safety valve and cover sheet;

5, charging, fully charged and then fully discharged, so cycle three times, the capacity will be good.

Lead-acid batteries should be used when not in use for a long time:

1. The battery must be fully charged before being put on hold. Under the premise of full power, it is generally recommended to recharge the battery in 2 to 3 months. If conditions permit, it is best to charge it once every 1~2 months.

2. When the electric vehicle is not in use, it should be stored in a cool and ventilated room. When the battery pack is fully charged, the load line will be disconnected. The self-discharge of the lead-acid battery itself will cause sulphation. If the battery is not replenished for a long time, the capacity will be caused. Recovery is difficult to affect the life, so it is generally recommended to recharge the battery in 2 to 3 months to facilitate battery life.

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