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Batteries can provide electricity for vehicles and store electricity. Its main functions include: when the engine starts or runs at low speed, because the car generator does not generate electricity or the voltage is very low, the electronic system in the car is all provided by the battery. When the engine is running normally, the generator supplies power to the electrical equipment and charges the battery at the same time.

As a DC power supply for cars, car batteries are an indispensable part. It has the following functions: it can provide a strong starting current (usually above 200A) when starting the engine.

The function of the battery is to supply electricity to the engine, the engine. When the engine is running at low speed, the power generation of the engine is insufficient to supply electricity to the lighting, audio device and ignition system;When the engine is running at high speed. When the generator generates enough electricity, it stores excess electricity. The charging and discharging of the battery can be displayed through the ammeter.

Functional function of car storage battery

1. Function: During the start-up engine, it is the starting system, The ignition system, electronic oil injection system and other electric vehicles of the car are powered.When the engine stops running or idles at low speed, it supplies power to the car's electrical equipment. When the demand for electricity exceeds the power supply capacity of the generator, the battery also participates in the power supply.

2. As the DC power supply of the car, the car battery is an indispensable part. It has the following functions: it can provide a strong starting current (usually above 200A) when starting the engine.

3. The function of the battery is to supply electricity to the engine, the engine. When the engine is running at low speed and the engine generates insufficient electricity, the lighting, audio device and ignition system are used for electricity; when the engine is running at high speed. When the generator generates enough electricity, it stores excess electricity. The charging and discharging of the battery can be displayed through the ammeter.

4. Car batteries have the following functions: (1) When starting the engine, provide a strong starting current to the starter, and at the same time supply power to the ignition system, electric injection system, instrument system and other electrical equipment. ( 2) When the generator does not generate electricity or the voltage is low, power is supplied to the alternator excitation winding, ignition system and other electrical equipment.

5. The function of the battery is to provide engine electricity and engine. When the engine is running at low speed, when the engine generates insufficient electricity, it is used for lighting, audio devices and ignition systems; when the engine is running at high speed. When the generator generates enough electricity, it stores excess electricity. The charging and discharging of the battery can be displayed through the ammeter.

6. The storage battery acts on the charging system and the starting system of the car at the same time. The role in the charging system is as follows: before the car completes the start-up, it meets the excitation needs of the generator and ensures that the generator can work normally.

These are the precautions for replacing the battery

The battery should be firmly installed. Regularly check whether the battery is firm, including whether the battery connection wire and live connector are firmly attached, and whether the connection between the wire and the connector is in good contact. Otherwise, when the car is driving on bumpy road conditions, the battery will shake or even fall off and be damaged, and the loose connection cable may lead to electric sparks.

Before installation, check whether the battery is damaged or leaking, and clean the surface of the battery with a dry cloth. If the battery shell is found to be cracked or leaking, the battery should be replaced immediately to avoid acid corrosion.

If the battery is used for more than two years, you need to pay attention to check it. The service life of the general car battery is 2-3 years, and the original battery of a new car can be used for more than 3 years.Therefore, if your battery has been used for almost two years, it should be noted that its service life may have expired.

(6) For vehicles whose batteries are replaced due to discharge failure, the dormant current of the vehicle should also be checked. The traditional method is to put the multimeter in the current block, and then connect it in series to the negative line of the battery, lock all the door locks, turn off the ignition switch and activate the anti-theft system, and leave it for a period of time until the current stabilizes.

Whether disassembly or installation, remember not to touch the metal when twisting the positive electrode battery brick. When purchasing a battery, it should be noted that it should be consistent with the original car battery model, so that it can be used normally. Pay attention to continuous electrical replacement to avoid remaking of some electronic equipment in the car.