What should cars pay attention to in the winter cold wave?

For a car to start smoothly, it must first have a battery that can pull the starter motor to work. Nowadays, most new cars use maintenance-free batteries, and most people are therefore negligent about batteries in the course of daily use. Especially in the cold winter, due to the increase of electrical equipment in the car, a lack of attention, and unknowingly accelerating battery aging. So what should be paid attention to in the process of daily use of the car? What should I pay attention to in winter?

What is the role of the battery?

We all know that the power that drives the starter when the car is started comes from the battery. In addition to driving the starter when it is started, the battery can also supply power to the car's electrical equipment when the vehicle is at idle or low speed and cannot fully meet the power demand of the electrical equipment.

In addition, when the vehicle is turned off, the battery can also be used as a power source for a short time to supply power to the electric equipment in the car; this is why we can listen to songs and use the power windows in the car after the engine is turned off. Because of the limited capacity of the battery, it is not recommended to use the electric devices in the car for a long time when the engine is off, otherwise, it may cause the battery to lose power, which may lead to the final inability to start the car.

Signs before the battery failure

In general, the battery life is between 2 and a half years to 3 years (individual good habits, not much use of the car can be longer), if the vehicle battery has been used for more than 2 and a half years, we should pay attention to observe whether the following conditions, because this may be the signs of the battery is about to fail.

1, battery failure warning light

This, needless to say, if the vehicle starts after the self-test, the dashboard lights up a similar "battery" warning light, which means that the battery battery said battery power is too low and has come the time to replace, it is best to go to the 4S store or professional auto repair store to check the battery, the conditions can also use their multimeter Test it.

2, the vehicle is more difficult to start than usual

Exclude the normal use of the vehicle the day before, and turn off the car after turning off all electrical equipment (such as lights, etc.), if the next day found that the vehicle compared to usually difficult to start, it is possible that this is also because of the battery power shortage causes difficult to start. Especially in the cold winter, this phenomenon is likely to be most people mistakenly normal that "winter cold start difficulties", but in fact, this may also be a precursor to the imminent failure of the battery.

3, idle headlights inexplicably dim

There is another situation in idle conditions (such as red lights), the headlights will inexplicably dim, which may also be a precursor to battery failure. As we mentioned earlier, when the vehicle is at idle or low speed and cannot fully meet the power demand of the electric equipment in the car, the battery will assist the power generation system to supply power to the electric equipment in the car; but if the battery power is insufficient at this time to provide auxiliary power, there will be this "headlights inexplicably dim" situation. The best observation of this situation is in the parking lot. If you find that the headlights are dimmed when idling at the destination parking space, then you should pay attention to it.

How do detect whether the battery is low?

The previous said so many possible signs before the battery failure, so how do we know whether it is the battery power is not enough to cause it? The battery check is mainly used to look at two data, the first is the voltage, and the second is the starting current. For voltage, detection is actually very simple, as long as you have a multimeter that can be detected. This method is also suitable for car owners to do a simple test themselves. As for the starting current requires the use of professional equipment, here we ignore for the time being.

Voltage detection requires a multimeter, to connect the positive and negative terminals of the multimeter to the positive and negative terminals of the battery, if the measured voltage value is greater than 12V, the battery is normal. If the voltage value is less than 12V, it means that the battery is already in a state of low power. If the voltage value is lower than 10.5V, it means that the battery is not far from the end of life, it is best to replace it as soon as possible.

It should be noted that the voltage measurement should be done in a cold state, like after the car has been parked overnight, before starting the next day to measure the voltage value measured at that time. In addition, if the vehicle inadvertently can not start, the conditions can be with the surrounding cars to take the electricity, otherwise, you can only call the 4S store rescue phone. We have already introduced how to take the electricity, you can click the following picture chain to see.

Don't forget to check the battery in cold winter weather

When winter comes, we will change the vehicle with lower viscosity oil, lower freezing point glass water or winter snow tires, but many car owners also ignore the battery. The cold winter temperature has a great impact on the battery, especially in the north where it is more than 10 degrees below zero. In addition to the change in battery characteristics brought about by the temperature, the corresponding change in the owner's car habits on cold days is also a test for the battery.

The best use temperature of the battery is 25 degrees, when the temperature drops by 1 degree, the relative capacity will drop about 0.8%, and when the temperature rises the capacity will recover. So when the weather temperature drops, the chemical reaction inside the battery becomes more difficult, and the battery's ability to discharge external high current is greatly reduced, at the same time, due to the low temperature, the viscosity of the engine's internal oil rises greatly, the running resistance is greatly increased, the need to provide greater external starting power. Under the effect of this cut, the car is more difficult to start.

We usually hear some battery brands like Varta claimed PowerFrame. Bevorui plate grid technology (can make the battery corrosion resistance increased by 66%, longer life; conductivity enhanced by 70%, winter start is also smoother), is for the winter battery chemical characteristics of the improvement, as for the actual use of how effective, I have not used. We will have the opportunity to personally test once, please pay attention!

In addition, in winter, some models usually do not use functions like heated seats, heated steering wheel, heated mirrors, defogging, etc. will increase the frequency of use, which will increase the power consumption and increase the pressure on the battery. If the battery has been used for 2 years before the approaching winter is a need to check more check.

When starting a cold car, it may be difficult to start a successful situation, then we should pay attention not to fire frequently in a short period, if it fails to start within 5 seconds, you need to wait 30 seconds and try again, and turn off all electrical equipment. Three times in a row did not fire then wait for 3 minutes and try again. If you keep discharging the battery, it will only cause the battery to run out of power faster and make it more difficult to start.

Conclusion

Whenever the seasons change, not only are people prone to physical discomfort, but the car battery is also a test. The change in car habits and the increase of electric devices in the car are all a kind of pressure on the battery. If you happen to have used your battery for more than 3 years, you should pay attention to check it more before winter; otherwise, it is not a good experience to have your vehicle lying on the road in the cold wind.