Do you know the replacement standard of the storage battery?

Sometimes, my friend will ask me a question: my car's battery has been used for 3 to 4 years, except for the dust in the corner, the appearance looks good, it is almost new. But all of a sudden it broke down. What happened?

Check the battery on time

As we know when the repair shop replaces battery, we have a set replacement standards. Because there is no professional instrument to detect them, it is called ordinary standard in the industry.

Careful friends will find some of the abnormal situation of the car: the car fuel consumption significantly increased compare to the previous period of time , the car became heavy, the headlights dimmed while driving at night. What's more, the car stereo didn't work if the car didn't start for a few days.

When checking the battery, it was found that the color of the observation hole above the battery had changed. At this time, it was felt that the battery really needed to be replaced. Today, we will introduce more professional testing standards, so as to provide security for our daily travel and prepare our car for a long run.

As we all know, at present, almost all the cars in the world use lead-acid batteries. Its standard voltage is 12V, which consists of 6pcs 21.V battery cells in series.

From its structure we can know: if the performance (voltage) in any cell declines, it will affect the battery overall performance. As batteries are used naturally, they have another feature that you don't know about: when their capacity is reduced to 80% of its rated capacity, the battery capacity begins to "diving" decline.

Although it is still working hard for you at this time, in fact, it is facing the danger of scrap at any time, and our beloved car will stop working at any time. Therefore, in the international and domestic battery industry, the rated capacity of the battery is 80% as the limit of the replacement of the battery. This is why the detection equipment - high-precision battery detector is made.

Battery detector

The detector is divided into simple type and precise type.

The former is relatively simple to use. During the test, it is directly clamped on the battery, and then the high-current discharge is performed to observe whether the drop position of the pointer is lower than 9.6V, so as to determine whether the battery needs to be replaced.

The latter belongs to the precision type, which, as the name implies, accurately connects the equipment and adjusts the discharge current. The capacity of the battery is determined by observing the discharge time. To further determine whether the battery needs to be replaced. Such a detector can show the parameters through intuitive numbers, if you don't have it at home, remember to test when your car are under maintenance in the 4S shop or repair shop.

Generally speaking, the life of the battery is 5 years, but now many car owners could only use it for 2-3 years, this is mainly due to the usual overuse, and the lack of maintenance, now there are a lot of vehicle decorators like to change a sound in the car, or install outside a stylish lighting or all kinds of entertainment facilities and so on.

They don't know that this directly leads to a significant reduction in the service life of the battery, prematurely scrapped. Here is also for you to provide some daily maintenance methods:

Car maintenance

1. Make sure all power is turned off when we leave the car.

2. Do not use electrical equipment for a long time when the car engine is off; Do not arbitrarily add additional electrical load;

3. If you have a long-term travel plan, you need to start the car every 15 days and run for 20 minutes.  (Running-in) 

4. If the vehicle is placed for more than 15 days, the negative battery connection should be disconnected in advance.  (To prevent power loss)

5. Check the battery open circuit voltage or magic eye state every three months (when open circuit voltage > 12.45V or magic eye is green it means battery is normal.  If the open-circuit voltage is less than 12.45V or the magic eye is black, the battery is lack of electricity and must be replenished 

6. For the battery with storage of more than one year on the vehicle, if power supplement is never done according to the above requirements, the battery must be scrapped and replaced.