What should I pay attention to when disassembling the car battery?

1 The battery should be installed firmly. Always check whether the battery is firm, including checking whether the battery connection wire and union are secure, and whether the contact between the wire and the joint is good. Otherwise, when the car is driving on bumpy roads, the battery will shake or even fall off and be damaged, and the loose connection cable may lead to electric sparks.

2. The ignition time is controlled within 385 seconds each time. If you can't ignite once, the interval between starting again should not be less than 15 seconds, if you still can't start the car after multiple starts, don't keep igniting for a long time, and you should find the reason from other aspects. Long-term high-current discharge of the battery will greatly damage the internal structure of the battery.

3 Do not turn on the air conditioner while the car is idling. Because the engine speed is slow when the car is idling, the generator charging is not enough to bear the electric energy required for the operation of the car air conditioner, and can only consume the electric energy of the battery itself, and the battery will accelerate the loss in the long run.

4 Pay attention to cleaning and rust prevention. Pay attention to cleaning the oxides, sulfates, etc. produced by the battery clips in time. Vaseline can be applied after cleaning and scraping off rust to prevent further corrosion, and at the same time, dust and spilled electrolyte should be removed from the battery cover frequently to help prevent self-discharge.

5 Do not replace the car with a battery with a larger capacity than the original battery. Because the generator on the car generates a fixed amount of electricity, if the battery with a large capacity is replaced, the new battery will be undercharged, the car can not start smoothly, and the battery will lose power for a long time and deteriorate faster.

It depends on what kind of car you are Some cars dismantle the battery to prevent theft Some cars are not anti-theft Afraid of anti-theft, the car will be dismantled after the start Pay attention to the positive and negative poles And don't dismantle the positive electrode first Be careful not to take the iron [If there is a problem with the car, ask the car master. 4S shop professional technician, 10 minutes to solve. 】

Here's how to remove and install the battery.

Tool: Wrench.

1. First find the location of the old battery in the car, which is fixed with a metal strip, as shown in the figure below.

2. Then use a wrench to unscrew the screws on the metal strip and remove the metal strip as shown in the figure below.

3. Then remove the metal strip for fixing, as shown in the figure below.

4. Then remove the positive and negative wires of the battery, and first remove the negative electrode when removing the wire to prevent short circuit, which is dangerous, as shown in the figure below.

5. Then remove the positive electrode, as shown in the figure below.

6. Then take out the prepared new battery and put it in the old position before, as shown in the figure below.

7. Use a wrench to fix the metal strip back to its original position, as shown in the figure below.

8. Then reinstall the positive and negative poles of the power supply, as shown in the figure below.

9. The disassembly and installation of the battery is completed, as shown in the figure below.

Step 1: Confirm.

Check if the battery is used up before replacing it. If your battery has cracked, replace it immediately. If not, then check both ends of the battery first.

Sometimes, the formation of sulfates can corrode away the extremes of the battery. Try brushing with a brush dipped in a mixture of baking powder and water. Your battery may be ready to be used again.

Step 2: Replace.

Turn off the car, carefully loosen the battery screws attached to the negative pole with a wrench, and remove the wire clamp from the extreme. Then remove the positive electrode in the same way. Grab the battery and take it out of your car.

After removing the battery, take a moment to clean the clamp and battery tray with soda. If they can no longer be cleaned, it is recommended that you replace them.

Step 3: Installation.

Carefully place your new battery in the battery tray. Confirm that the positive and negative poles of the battery are placed correctly, and then screw the shelf to fix the battery. Connect the positive pole to the wire clamp, and the same goes for the negative pole. Then cover the hood.

Note: 1. Old batteries are highly toxic and must be properly disposed of. You can take it to a garage or car shop, where they will confirm if the old battery can be reused.

2. The battery must be changed when the car is turned off, and the battery contains highly flammable liquid, so you must work in a ventilated area. And it's best to wear protective glasses and gloves.

The disassembly method of the car battery is as follows: 1. Find the location of the old car battery, which is fixed with a metal strip. 2. Use a wrench to unscrew the screws on the metal strip and remove the metal strip for fixation.

3. Remove the positive and negative terminals of the battery, and first remove the negative electrodes when removing the wires to prevent short circuits. 4. Take out the prepared new battery and put it in the position of the old battery. 5. Use a wrench to fix the metal strip to its original position.

6. Reinstall the positive and negative poles of the power supply. Extended information: The car battery, also known as the battery, is a kind of battery, and the working principle is to convert chemical energy into electrical energy.

1. If the car is controlled by a computer board, directly dismantling the car battery will lead to data loss, which requires initial argumentation, commonly known as decoding or coding.

2. When the computer system voltage is too low or the power is off, the data in use will be lost due to power loss.

3. The car battery leaks about 1% per day, if it is connected to the car and is not removed, the car is used to maintain the minimum current of about 80mA, if there is an anti-theft alarm, it will also consume a certain amount of electric energy, and the general battery has about 2 3% of the electricity consumed every day.

If the car is controlled by a computer board, directly disassembling the car battery will lead to data loss and need to be initialized, commonly known as decoding or coding.

1. When the computer system voltage is too low or the power is off, the data in use will be lost due to power loss.

2. The car battery leaks about 1% per day, if it is connected to the car and is not removed, the car is used to maintain the lowest current (commonly known as "dormant" current) about 80mA, if there is an anti-filial piety theft alarm, it will also consume a certain amount of electric energy, the general battery has about 2 3% of the electricity consumed every day, and it is not advisable to remove the battery artificially if you do not drive for a long time.

3. The battery is bulging, and it can be judged by visual inspection that at this time, the battery voltage may be higher, but the power is less and it is not enough to start.

When disassembling the car battery, the negative electrode should be removed first, and the positive electrode should be disassembled after imitating the ruler. Park the car in a safe place, turn off the ignition switch, and disconnect the electrical equipment of the whole vehicle from the power supply. Open the hood, first remove the grounding wire of the negative pole of the battery, and then remove the starter wire of the positive pole.

Remove the fixing bolt and remove the battery.

When disassembling the car battery, it should be noted that the battery connection line cannot be disassembled before the fault code recorded by the engine electronic control unit is read, and the fault code cannot be cleared by disassembling the battery connection line. When repairing a computer system with fault self-diagnosis, the fault should be confirmed first** before removing the battery cable.

If you find that the battery terminal bolt is difficult to disassemble due to corrosion, do not hit it with a hammer or pliers, so as to avoid the pole breaking and the plate active material falling off. After cleaning with hot water, unscrew the bolts and remove the chuck with a chuck puller. When removing the battery, handle it carefully and use the battery handle as much as possible.

When disassembling the positive electrode, avoid accidental contact with the metal parts of the car. If it touches the metal, it is equivalent to connecting the positive and negative poles of the battery together, which will not only cause a short circuit in the car battery, but also cause ignition in serious cases.

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What is the correct way to disassemble and assemble the car battery? The correct way to disassemble and assemble the car battery is: 1. When you open the battery, you will see that there is a fixed bar on the top of the battery, and use the No. 8 wrench to twist it; 2. After twisting and taking it off, you will see the icon marked with the positive electrode and the negative electrode next to the brick, and the negative electrode should be removed first, because the negative electrode will reflect the common spark when it touches the metal; 3. Repeat the previous step to remove the positive electrode, and try not to touch the metal during the disassembly; 4. Next, put the new battery on it; 5. Buckle the fixed bar into the groove below and then twist it on; 6. Repeat the above steps and twist back; 7. When installing it back, you should also pay attention to it, at this time, you should install the positive electrode first, and then install the negative electrode.

Do I need to dismantle the battery for a sliding round car? In daily life, it is necessary to pay attention to: 1. Avoid parking the car in the open-air parking lot for a long time, such as long-term parking, the battery must be removed and taken away to prevent the battery from being damaged by icing; 2. The car engine is not easy to start in winter, and the time to start the car each time should not exceed 5 seconds, and the interval between starting again should not be less than 15 seconds.

In the case that the ignition is still not ignited after multiple starts, the cause should be found from other aspects such as the circuit, ignition coil or oil circuit. Avoid multiple uninterrupted starts, which will cause the battery to burn out due to over-discharge; 3. The car battery should be charged frequently, and the battery will slowly discharge itself until it is scrapped if it is not used for a long time, so the car should be started every once in a while to charge the battery; 4. Clean the binding post of the battery every once in a while, and apply special grease to protect the wiring harness. Always check the accessories and connections on the battery.