What does a car battery do? What is the function of a car battery?

The battery can provide electricity for the vehicle and store electrical energy. Its main functions include: when the engine is starting or running 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.

While the engine is operating normally, the generator supplies power to the electrical equipment and charges the battery at the same time. At the same time, the battery is still a large capacity.

It is a device that converts chemical energy into electrical energy, which belongs to DC power supply, and its functions are:

1) When starting the engine, provide a strong starting current (about 10A) to the starter.

2) When the generator is overloaded, it can assist the generator to supply power to the electrical equipment.

3) When the engine is at idle speed, power is supplied to the electrical equipment.

4) The battery is also a large-capacity capacitor, which can protect the electrical appliances of the car.

5) When the voltage at the generator end is higher than the electromotive force of the lead-acid battery, a part of the electrical energy is converted into chemical energy and stored, that is, it is charged.

To store electric energy, there are a lot of equipment on the car, such as starting motors, headlights, wipers, on-board computers, etc., if the car is out of power, it basically can't move, and there is a generator in the car to charge the battery.

1. The car should be driven regularly:

Especially for new cars, it is recommended that the owner drive it regularly, the vehicle is parked for a long time so that the power in the battery slowly decreases, after a long time, it is easy to lose power, you can drive out for a period of time every few days, let the car battery be charged, try to keep the car battery in a full state, it is best to keep it at more than 20 minutes of driving time.

2. Try not to use electricity after the vehicle is turned off

Listening to songs after turning off is a more common phenomenon in the process of daily car use, especially when waiting for others, many people like to listen to songs, in the state of flame-off, the car consumes the power supply of the battery, if it is used for a long time, the power in the battery may be exhausted, and the phenomenon of failure to start, it is recommended that the owner does not use electrical equipment after the vehicle is turned off.

3. Clean the battery regularly

In the daily driving process, you need to clean the battery of the car, you can use a rag to wipe the dust, oil, white powder and other leakage dirt of the panel, positive and negative poles, do not use a wet cloth, if you do not handle it well, it is recommended that the owner go directly to the 4S shop or a professional repair shop for processing.

4. Replace the battery regularly

The car battery has a certain service life, generally three years or more than 100,000 kilometers, and the battery will be reduced in performance for a long time, so the owner needs to replace the car battery in time.

What can a battery do?

Its main function is when the engine starts or runs at low speed, because the automobile generator does not generate electricity or the voltage is very low, at this time the starter, the ignition system and the electrical equipment in the car require the electric energy, all supplied by the battery, when the engine is in normal operation, the generator supplies power to the electrical equipment in the car, and charges the battery at the same time, when the power consumption of the automobile electrical equipment is too large, exceeds the power supply capacity of the generator, the battery and the generator jointly supply power to the electrical equipment in the car.

At the same time, the battery is also a large-capacity capacitor, which can absorb the instantaneous high voltage generated in the interior circuit, so as to protect the electrical equipment in the vehicle. The battery of the car is an important component of the car, if there is no battery, the vehicle is difficult to start normally, the battery can not only provide electric energy for the vehicle, but also store electric energy, which is the origin of the name of the battery, power supply"with"Electricity storage"Corresponding to the discharge and charging process of the battery, the battery belongs to the DC power supply.

Any operation that still uses the electrical equipment in the car for a long time after turning off the engine will lead to excessive discharge of the battery, such as forgetting to turn off the lights after parking at night, and the engine cannot start the next day, a large part of the reason is that the battery power is exhausted due to not turning off the lights in time, and the performance of the battery may have been greatly reduced.

Electricity is required for the electrical appliances and engine of automobiles.

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When starting the engine, the battery provides a strong starting current to the starter. When the generator is overloaded, the battery can assist the generator in supplying power to the electrical equipment. When the engine is idling, the battery supplies power to the electrical equipment.

The battery is also a high-capacity capacitor that protects the car's electrical appliances.

The role of car batteries.

When the voltage at the generator end is higher than the electromotive force of the lead-acid battery, a part of the electrical energy is converted into chemical energy and stored, that is, it is charged. If the battery is not used for a long time, it will slowly discharge itself until it is scrapped. Therefore, the car should be started at regular intervals to recharge the battery.

When our car is started, we need to use a battery and the electrical equipment on the car, which all need batteries.

The stored electricity is used to meet the needs of the electrical system and has the effect of stabilizing the voltage.

Start the engine, and use electricity for the body electrical appliances.