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If used in a new car, the service life is generally about 3-4 years, and after a replacement, the service life is about 2 years.

Maintenance free batteries

definition:

Sealed maintenance free batteries adopt the latest fully sealed structure and modern production technology designed in the 1990s. Make it have excellent performance, long lifespan, pollution-free, maintenance free, safe and reliable.

2. Correct maintenance, the correct use and maintenance of batteries mainly include the following 7 points:

Check if the fixing bolts of the battery on the bracket are tightened. Improper installation may cause damage to the housing due to driving vibrations. Also, do not place metal objects on the battery to prevent short circuits.

Regularly check if the pole and terminal are connected reliably. To prevent oxidation of the terminal, protective agents such as Vaseline can be applied.

It is not possible to directly ignite (short-circuit test) the battery to check its charge, as this will cause damage to the battery.

Ordinary lead-acid batteries should pay attention to regularly adding distilled water. It is best to charge dry load batteries appropriately before use. As for maintenance free batteries that can be added with water, it is not impossible to maintain them properly. Adding distilled water when necessary can help extend the service life.

The air holes on the battery cover should be unobstructed. When charging a battery, a large number of bubbles will be generated. If the ventilation holes are blocked, the gas cannot escape. When the pressure increases to a certain extent, it will cause the battery casing to explode.

There is often a yellow white paste around the battery pole and cover, which is caused by sulfuric acid corrosion of the root post, wire card, fixing bracket, etc. These substances have a high resistance and need to be removed in a timely manner.

When two batteries need to be used in series, it is best for the capacity of the batteries to be equal. Otherwise, it will affect the service life of the battery.

We all know that every component of a car has a lifespan, and the same goes for batteries. The function of a battery includes: when the vehicle is ready to start, the battery is discharged to the starter motor, which drives the flywheel and crankshaft to rotate, thereby starting the vehicle. When the engine power is insufficient or not started, it provides power to internal electrical appliances such as the audio system, lighting system, etc. When the engine starts supplying power normally, the battery will collect and store electrical energy for future use.

Nowadays, automotive batteries can be roughly divided into two categories: maintenance free and ordinary batteries (non maintenance free). At present, most models sold in the market use maintenance free batteries, while most Japanese cars use non maintenance free batteries, which are ordinary batteries.

A regular battery, also known as a lead-acid battery, has electrodes composed of lead and lead oxides, and the electrolyte is an aqueous solution of sulfuric acid. The main advantages are stable voltage and low cost; The disadvantage is frequent daily maintenance. Old style ordinary batteries generally have a lifespan of about 2 years and require regular checks of the electrolyte height and the addition of distilled water.

The biggest characteristic of maintenance free batteries, as the name suggests, is "maintenance free". There is basically no need to supplement distilled water during its service life. It also has the characteristics of shock resistance, high temperature resistance, small size, and small self discharge. Of course, relatively speaking, its price will also be more expensive than ordinary batteries. As for the service life, the recommended replacement cycle for maintenance free batteries under normal circumstances is about 3 years.

From the perspective of use and maintenance, whether your car is equipped with a maintenance free battery or a regular battery, the normal service life is about 2-3 years. If used sparingly, it is only 3-4 years, and the driving mileage is 60000 to 90000 kilometers. If you feel that the battery cannot be charged or the starter motor is weak, and the headlights are noticeably dim, you need to remove the battery and charge it with a charger for 12-24 hours. If it still cannot be charged and the mileage reaches 50000 kilometers or more, and the generator is not faulty, you need to consider replacing the battery

Good for two to three years or even longer, substandard is hard to say. However, if you are familiar with the repair shop, you can replace it with a new one within the warranty period. It is free. There are three colors of electrolyte: red, green, and yellow. The color of electrolyte can be observed through the window hole, and green represents the normal lifespan of a battery, which is generally about two years. There are many reasons for battery damage:

1: Excessive discharge

2: Long term storage of batteries (not fully charged during storage)

3: Unable to charge through car engine

4: No electrolyte

5: The electrolyte density is too high

6: Charging under high temperature conditions

7: Contamination by pollutants (such as hydrochloric acid, seawater, organic acids, etc.)

8: Excessive current applied during battery charging

9: The deformation of the electrode plate causes the positive electrode plate to come into contact with the cladding plate, resulting in a short circuit phenomenon

10: Deposition of dirt on the upper and lower parts of the electrode plate, causing a short circuit

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