How to choose and use car batteries

1. Don't just replace the car with a battery with a larger capacity than the original battery. Because the power generation of car generators is fixed. If the battery is replaced with a large capacity battery, the new battery will be insufficiently charged, the car will not start smoothly, and the long-term loss of battery power will shorten the service life. 2. Each start time should not exceed 3 to 5 seconds when starting the car, and the interval between restarts should not be less than 15 seconds. 3. When buying a battery, read the letters above clearly. Anything with the QA letter is a dry-charged battery. 4. Shake the electrolyte before adding it to the battery. Please wear gloves during operation, and be careful not to spill the electrolyte on your hands or clothes. 5. If the vehicle is left unused for a long time, start the vehicle every 25 days and run it at a medium speed for about 20 minutes. Otherwise, the car will be left for too long and it will be difficult to start. 6. Do not let other objects fall into the battery when adding electrolyte. If something falls in accidentally, do not use metal materials to fish out, use wooden rods to clamp out impurities; such as iron wire or copper wire to fish out, metal molecules will enter the battery under the corrosion of sulfuric acid to form self-discharge and damage the battery. 7. Regularly check whether the small holes on the battery cover are ventilated. If the small hole is blocked, the gas that appears will not be discharged, and the battery shell will be broken when the electrolyte expands, thereby reducing the life of the battery. 8. Regularly check the liquid level of the electrolyte, and add the electrolyte in time when the liquid level drops. 9. For batteries without a marking line, the electrolyte should be 10 to 15 mm higher than the plate; for batteries with two red lines, the electrolyte must not exceed the upper red line. Some people think that the more electrolyte, the greater the electricity. This is a wrong idea. When the car is running at high speed, the generator output voltage is greater than the battery voltage, and the battery starts to charge. When charging, the electrolyte volume expands, and if the electrolyte is too full, it will overflow from the small holes in the battery cover. The electrolyte conducts electricity, and once it flows between the positive and negative poles of the battery, it will form a self-discharge loop. The car cannot start and shortens the battery life. In this case, use cotton wool to wipe off the electrolyte, or rinse with boiling water. 10. When removing the battery from the car, first remove the negative electrode and then the positive electrode, the opposite is the case when installing. When charging, the battery cover must be unscrewed. Do not use an open flame to approach the battery port being charged, because the hydrogen that appears in the battery during charging can easily deflagrate. Disclaimer: Some pictures and content of articles published on this site are from the Internet, please contact to delete if there is any infringement. Previous: Introduction to Ni-MH battery charging