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Recently, Car Quality Network has received frequent complaints from car owners that the battery often fails to start after a new car has been bought for a short time. Most car owners thought that there was a problem with the battery itself, but they went to the 4S store and got a reply that the battery did not have a quality problem, it was normal consumption, and they did not replace it for free. What is the problem? Did the 4S store shirk its responsibility? Now I'd like to talk with you about the "automotive battery".

In the service life of auto parts, in addition to tires, it is the battery that is most likely to cause problems. As the most important part of automobile electrical appliances, the battery supplies power to the lights, air conditioners, stereos, etc. in our daily use, in addition to starting the vehicle. When the engine starts, the engine will drive the generator to run. At this time, the output voltage of the generator will be slightly higher than that of the battery. At this time, the power supply system will become a generator. At the same time, the generator is also constantly charging the battery, and the battery will become a backup auxiliary power source.

How long is the life of the car battery?

With the diversification of automobile types, there are several kinds of automotive batteries, among which the most common one is lead-acid batteries.

Lead acid battery (service life 2-4 years)

Lead acid battery is the earliest and most common battery. Its electrode is composed of lead and lead oxide, and its electrolyte is the aqueous solution of sulfuric acid. Generally speaking, this kind of battery has the advantages of low price, stable voltage, etc., but its service life is also relatively short, and the maintenance times are also relatively large. Under normal use, the service life is about 3 years, and the cycle charging and discharging is about 300-500 times. Of course, if you want to give full play to the limit of this type of battery and extend its service life, you can check the electrolyte level every 10,000 km or so. Even if it is replenished, keep it at the appropriate level all the time, which can extend the service life of this battery to a certain extent. However, at present, most 4S stores have stopped this kind of added service, and car owners' friends can only go to the repair shop or complete this operation themselves.

Maintenance free battery (service life 2-4 years)

The biggest advantage of maintenance free batteries is that they do not need maintenance. Compared with lead-acid batteries, these batteries consume very little electrolyte, do not need to add distilled water during use, and are also characterized by high temperature resistance, small size, small self discharge, etc. Of course, with so many advantages, the price will not be too cheap, about twice that of lead-acid batteries. As for service life, the replacement cycle of maintenance free battery is about 3 years under normal conditions, which is equivalent to that of lead-acid battery.

AGM/special battery for automatic start stop (service life 4-6 years)

The engine with automatic start stop can better save fuel, so many manufacturers have applied this technology to the body. However, at this time, many friends may have to ask: Every time an automatic start stop vehicle stalls, it will start the engine again before moving forward. Isn't that a waste of batteries? Yes, it is true. But obviously, the manufacturer has taken this situation into consideration, so all automatic start stop vehicles are equipped with special AGM batteries. AGM battery refers to the battery whose separator is made of superfine glass wool. Its cycle charging capacity is 3 times higher than that of lead calcium battery, and its service life is longer. In addition, the low temperature starting effect of the battery is better, and the electric capacity is more stable during use, but the price is also the most expensive.

No matter what kind of battery, the storage capacity of these batteries is very limited. Generally, when the vehicle is off, two 55W headlights can consume all the power of a 12V60A battery in 5 hours. In addition, the engine starter will also bring heavy load to the battery at the moment of ignition. Generally, after 4-5 consecutive operations, the battery can no longer meet the requirements of ignition starting due to power loss. Finally, the life of the battery will be greatly affected when the car starts. But in addition to this factor, there are other operations that will also affect the service life of the battery.

Don't turn off the electrical appliances before turning off the engine

It is a common fault for many car owners not to turn off the electrical appliances before turning off the engine. They all think that when the car is powered off, all electrical appliances will be powered off. In fact, this idea is very wrong. Due to the design requirements, many vehicle functions can still be used normally after the vehicle is turned off, such as wiper, radio, headlight, etc. If these electrical appliances are forgotten to turn off before locking the car, they will always be in working condition, consuming the battery power, and will not stop until the battery power is exhausted. In addition, it should be noted that the door is not fully closed, which will also consume the battery power.

Do not turn off the air conditioner before flameout

Unlike other electrical appliances, car air conditioners automatically turn off when the car is turned off. However, when the vehicle is powered on, the air conditioner will automatically turn on again. If you drive the air conditioner to start the vehicle at this time, think about how much the instantaneous load of the battery will be, especially for some batteries that have been used for more than two years. If the vehicle is not started successfully at the first time, it is likely that the ignition will fail to start again because the battery charge is too low.

Use the external connector after flameout

Each vehicle is equipped with one or more 12V cigarette lighters. In our daily life, in addition to the cigarette lighting function, the cigarette lighters are mainly used to expand the external power supply of the vehicle, such as mobile phone charging, tachograph, inflation pump, vacuum cleaner, etc. When using these external power supplies, many people will make a mistake, that is, they will not start the vehicle and plug it in directly. I thought that the battery would be OK if it was used for a short time. Some people didn't even know that the vehicle was consuming battery power at this time. As a result, when the power consumption was over, the battery power was almost gone. Therefore, when using the external power supply, no matter how long it is used, the vehicle must be started before use. In this way, the electricity used is provided by the generator, which will not affect the battery. In case of power loss, the vehicle cannot be started.

Long term short distance driving

As mentioned earlier, when the car starts, it will consume a lot of battery power, and it will take a while for the generator to fully charge the battery. If we drive too short (less than two kilometers) at this time, the car will shut down before the battery is fully charged, which will also affect the service life of the battery. Especially for some people who are close to work, the battery has been in a semi saturated state for a long time, which has a great impact on the service life of the battery.

Refit high-power spot lamp

Some off-road enthusiasts will add high-power spotlights to their vehicles to get better brightness at night. However, this high-power spotlight will undoubtedly increase the power consumption of the vehicle. If the headlights are turned on unintentionally when the vehicle is off, it is difficult for ordinary batteries to maintain this high current output, and the battery power will be used up in minutes. Therefore, it is recommended that you also replace batteries and fuses with higher current when refitting high-power spotlights.

The car has been parked for a long time and has not started

In addition to these human factors mentioned above, the battery life will be lost if the vehicle is not opened for a long time. In fact, when the vehicle is not open for a long time, the battery will also discharge naturally. Generally, a fully charged battery can completely discharge its power in only one month. The power loss problem caused by this natural discharge will also affect the service life of the battery. Therefore, if the vehicle is not driven for a long time, it is better to start the vehicle once between 7-10 days, and let the engine idle for about 20 minutes to charge the battery.

Summary:

The battery looks like an inconspicuous small part in our daily car, but in fact, the friends who have experienced it do not know how many times they have been left on the road. When the power in the car battery is exhausted, it will not only affect our daily travel, but also greatly reduce the battery life. Therefore, I remind you to pay more attention before getting off the bus to check whether all the electrical appliances of the car are turned off. Also, when the car is not running for a long time, you should pay attention to charging the battery. It is better to check the battery every 1-2 years, replace what needs replacing, and maintain it.

Finally, in order to avoid being foolproof, I recommend that you buy a car battery charger or battery bonding wire. In this way, even if the battery is dead, you don't have to do anything about it. You can take power from other vehicles and fix it instantly.

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