Pharma active ingredients HS code checks

List of the contents of this article:

• 1,Pharma active ingredients HS code checks What is the function of storage batteries in cars?
• 2, These precautions for car batteries are indispensable!
• 3, How often should car batteries be changed
• 4, 10 key points in the use of automotive batteries

What is the function of the battery in the car?

function: During the start-up of the engine, it is powered by the start-up system, ignition system, electronic oil injection system and other electric vehicles of the car. 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.

(5) Stabilize the power supply voltage and protect electronic devices. A battery is equivalent to a large-capacity capacitor, which can not only keep the voltage of the power supply system stable, but also absorb the instantaneous overvoltage in the circuit and prevent damage to electronic equipment. A battery is a device that converts chemical energy into electrical energy, which is a reversible DC power supply.

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.

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 battery acts on the car charging system and the start-up system 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.

Battery is a common name for storage battery. It is a kind of capacitor with the function of storing electricity. Electrical energy can be converted into chemical energy for storage, and the process is charging. In use, chemical energy can be converted into electrical energy, and mechanical energy can be converted into external work, which is a reversible process.

These precautions for car batteries are indispensable!

Prevent parking in the open-air parking lot for a long time. If you park for a long time, you must take out the battery to prevent it from freezing and damaging it. The car engine is not easy to start in winter, so the time to start the car should not exceed 5 seconds each time, and the next start-up distance should not be less than 15 seconds.

Notes on battery use and maintenance: If the battery is not used for a long time, it will discharge itself, resulting in scrapping. The car needs to be started regularly to charge the battery. The method of unplugging the two electrodes on the battery should be used, and pay attention to pulling out the positive and negative electrode wires. First, pull out the negative pole line or pull out the negative pole to connect to the car chassis, and then pull out the end marked with the positive pole.

10 key points in the use of car batteries. When buying a battery, first identify the letters on the battery. Any one with the letter QA is a battery. When adding electrolyte, shake the electrolyte well before adding it to the battery, and pay attention not to splash the electrolyte on your hands and clothes.

Avoid parking in the open-air parking lot for a long time. If you park for a long time, be sure to remove the battery and carry it to prevent it from freezing and damaging it. Car engines are not easy to start in winter.The time to start the car should not exceed 5 seconds each time, and the interval between restarting should not be less than 15 seconds.

How often should the car battery be changed

1. Change the car battery once every 3-4 years. Private car battery: Under normal circumstances, general family cars are more economical. The battery of a new car is generally 3-4 years old, but after being replaced once, it generally needs to be replaced in about 2 years.

2. The service life of the battery is generally about 2-3 years or 100,000 kilometers, but if it fails, the battery should be replaced in advance. Therefore, it is also very important to check the battery at ordinary times. In summer, it is usually checked once a week, and in winter, it is enough to check once every half a month.

3. Car batteries are averageTheoretically speaking, the service life of a car battery is generally about 23 years. If it is used and maintained properly, it can be used for 4 years without any problems. If it is used and maintained improperly, it will be damaged in advance within a few months. Therefore, the correct use of car batteries is very important.

4. It is generally recommended to replace car batteries every 2 to 5 years. The specific replacement time of the car battery needs to be determined by the owner's usage, the type of battery, maintenance measures, etc. If the owner has good habits and maintains the battery regularly, the battery can be extended, generally up to about 4 to 5 years.

10 key points in the use of automotive batteries

The battery is firmly installed on the vehicle to reduce vibration.Regularly check whether the battery pole fixing clip is in contact firmly to prevent the battery from sparking and exploding. The oxides and sulfates produced by the battery bracket must be scraped clean and applied with Vaseline to prevent rust. Prevent the battery from overcharging or long-term power outage.

Don't start the battery for too long. If the start-up time is too long, the battery will be over-discharged, affecting the service life. Therefore, it is recommended that the total time of starting the car should not exceed 5 seconds, and the interval between starting again should not be less than 15 seconds.

Intertent use of the launcher: each use time does not exceed 5 seconds, and rest for 10 to 15 seconds after two startups before use. The discharge of the battery should not exceed 25% in severe winter and 50% in summer. Regular charging: Do not leave the battery with sufficient electrolyte in the condition of insufficient power for a long time, otherwise it will be scrapped.

Do not put the battery in an overheated environment when using, especially away from the heat source when charging. After the battery is heated, cooling measures should be taken, and it can only be charged when the battery temperature returns to normal. The installation position of the battery should ensure good heat dissipation as much as possible. If overheating is found, charging should be stopped, and the charger and battery should be checked.

Disassemble the old battery (1) Confirm the installation part of the battery. Most models are installed in the engine compartment or luggage compartment, and some models are also installed in the cockpit. Take good body protection measures in the corresponding position.