Car battery maintenance precautions Seven major points need to be kept in mind
2023-10-30 01:10:41
The battery is an important part of the car. Its function is to supply power to the starter, and to supply power to the engine ignition system and other electrical equipment during engine start or low speed operation. When the engine is running at high speed, the generator generates enough power and the battery can store excess power. Unfortunately, it is often overlooked by most people. It is an important part of car maintenance that the battery must be properly maintained to maintain adequate power. The following will introduce the relevant knowledge and maintenance knowledge of the car battery, to help you better understand the use and maintenance of the battery, and extend the life of the battery.
An electrochemical device for electrical energy. The lead-acid battery consists of positive and negative plates, separators, shells, electrolytes and wiring pile heads. The chemical reaction of the discharge depends on the active material of the positive electrode plate (lead dioxide PbO2) and the active material of the negative electrode plate (sponge-like pure lead). Pb) is carried out under the action of an electrolyte (a composition of sulfuric acid H2SO4 and water H2O). A standard 12V lead-acid battery contains six units, each generating approximately 2V of electrical energy (each power supply has a positive and negative column: the positive column is engraved with a "+" sign, which is dark brown; There is a "-" sign, which is light gray).
In the process of using traditional batteries, the electrolyte will decrease. This is because the grid of the plates is made of lead-bismuth alloy, which will pollute the sponge-like pure lead on the negative plate and weaken the battery after fully charging. The back electromotive force causes excessive decomposition of water, and a large amount of oxygen and hydrogen escape from the positive and negative plates, respectively, and the electrolyte is reduced.
The maintenance-free battery is designed in the same way as a conventional battery, using a thicker plate material. The important difference is that the grid of the plate is made of lead-calcium alloy. In the electrolysis reaction process, the overcharge current can be reduced, the liquid vaporization speed can be reduced, thereby reducing the electrolyte loss and prolonging the service life of the battery.
Discharge and Charging During the discharge process, lead dioxide (positive electrode), sponge lead (negative electrode) and sulfuric acid in the electrolyte react with a discharge chemical reaction to produce lead sulfate (PbSO4) and water (H2O). The difference between the positive and negative plates is reduced. Since the voltage of the battery depends on the material of the plate and the concentration of the electrolyte, the battery loses energy after the discharge reaction. The charging process is the reverse of the discharging process. Under the action of generator current, lead sulfate and water are converted into lead dioxide (positive electrode), sponge lead (negative electrode) and sulfuric acid, and the concentration of electrolyte and electrolyte is restored, and the energy of the battery is increased.
Precautions for use 1. When starting the car, the starting time should not exceed 3 to 5 seconds, and the restart interval should be no less than 10 seconds.
2, the car often drives short-distance, open and stop, will cause the battery to be in a state of insufficient charging for a long time, shortening the service life. Driving on the highway at a steady speed for 20 to 30 minutes, you can charge the battery for a sufficient time.
3. When driving daily, check and make sure all lights and other electrical appliances (such as radio, CD) are turned off before leaving the car. Because this may drain your battery.
4, if the battery is exhausted, you need to use the fire (Jump-Starting, also known as the line) to start, you should immediately try to drive at a constant speed (such as highway speed) for at least 20 to 30 minutes, to fully charge the battery.
5. In the case that the battery is completely discharged, it may not be possible to start the car for you by the fire. At this point, you need to use a dedicated battery charger for slow charging.
6. If the car is not used for a long time, the car should be fully charged. At the same time, the car is started every other month, and the medium speed runs for about 20 minutes. Otherwise, the placement time is too long and it will be difficult to start.
7. Understand the battery life. Used for more than 4 years, it is recommended to replace.
An electrochemical device for electrical energy. The lead-acid battery consists of positive and negative plates, separators, shells, electrolytes and wiring pile heads. The chemical reaction of the discharge depends on the active material of the positive electrode plate (lead dioxide PbO2) and the active material of the negative electrode plate (sponge-like pure lead). Pb) is carried out under the action of an electrolyte (a composition of sulfuric acid H2SO4 and water H2O). A standard 12V lead-acid battery contains six units, each generating approximately 2V of electrical energy (each power supply has a positive and negative column: the positive column is engraved with a "+" sign, which is dark brown; There is a "-" sign, which is light gray).
In the process of using traditional batteries, the electrolyte will decrease. This is because the grid of the plates is made of lead-bismuth alloy, which will pollute the sponge-like pure lead on the negative plate and weaken the battery after fully charging. The back electromotive force causes excessive decomposition of water, and a large amount of oxygen and hydrogen escape from the positive and negative plates, respectively, and the electrolyte is reduced.
The maintenance-free battery is designed in the same way as a conventional battery, using a thicker plate material. The important difference is that the grid of the plate is made of lead-calcium alloy. In the electrolysis reaction process, the overcharge current can be reduced, the liquid vaporization speed can be reduced, thereby reducing the electrolyte loss and prolonging the service life of the battery.
Discharge and Charging During the discharge process, lead dioxide (positive electrode), sponge lead (negative electrode) and sulfuric acid in the electrolyte react with a discharge chemical reaction to produce lead sulfate (PbSO4) and water (H2O). The difference between the positive and negative plates is reduced. Since the voltage of the battery depends on the material of the plate and the concentration of the electrolyte, the battery loses energy after the discharge reaction. The charging process is the reverse of the discharging process. Under the action of generator current, lead sulfate and water are converted into lead dioxide (positive electrode), sponge lead (negative electrode) and sulfuric acid, and the concentration of electrolyte and electrolyte is restored, and the energy of the battery is increased.
Precautions for use 1. When starting the car, the starting time should not exceed 3 to 5 seconds, and the restart interval should be no less than 10 seconds.
2, the car often drives short-distance, open and stop, will cause the battery to be in a state of insufficient charging for a long time, shortening the service life. Driving on the highway at a steady speed for 20 to 30 minutes, you can charge the battery for a sufficient time.
3. When driving daily, check and make sure all lights and other electrical appliances (such as radio, CD) are turned off before leaving the car. Because this may drain your battery.
4, if the battery is exhausted, you need to use the fire (Jump-Starting, also known as the line) to start, you should immediately try to drive at a constant speed (such as highway speed) for at least 20 to 30 minutes, to fully charge the battery.
5. In the case that the battery is completely discharged, it may not be possible to start the car for you by the fire. At this point, you need to use a dedicated battery charger for slow charging.
6. If the car is not used for a long time, the car should be fully charged. At the same time, the car is started every other month, and the medium speed runs for about 20 minutes. Otherwise, the placement time is too long and it will be difficult to start.
7. Understand the battery life. Used for more than 4 years, it is recommended to replace.
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