Are you using the car charger correctly?

With the development of the times, the progress of science and technology, and the continuous increase of per capita income, people's living conditions are becoming more and more considerable. As communication supplies and transport supplies, they have entered people's families in a large area. When it comes to mobile phones and cars, although they are very different, they are related to each other. Stop bragging.



Nowadays, the power storage capacity of mobile phones is not as good as day by day. When people are driving, if the mobile phone suddenly loses power, it will cause a great impact and delay things. Therefore, the car charger is popular in the hands of most car owners. However, the quality of car chargers is uneven, and many car owners do not know how to use them correctly. Once there is a problem, it will bring you huge losses.

1、 Working principle of car charger

This thing is to convert 12V voltage of cigarette lighter socket into 5V USB voltage, and then connect the power cable to charge the mobile phone. Usually, the car charger converts 12V (car 12V, truck 24V) DC into 5-20v DC for charging the car mobile device, which is characterized by low power consumption, simple and convenient, and low price.

This configuration is simple and easy to use, but if it is not operated properly, it will lead to damage to electronic equipment, or even danger.

Note 1: before the vehicle starts, it is better not to plug in the on-board charger, or connect the power supply to the mobile phone, so as to avoid the unstable voltage generated when the vehicle starts to damage the charger and mobile phone.

Note 2: when the car charger becomes dirty after long use, do not use strong chemicals, cleaning agents, strong detergents to clean the charger. Use wet paper towel to wipe and dry, so as to avoid damage.

Note 3: pay special attention not to throw, drop, knock or vibrate the charger during use. Especially when the vehicle is exposed to the sun in summer and the temperature inside the vehicle is over 45 degrees, do not use the charger temporarily, which will seriously damage the circuit board inside the charger.

Note 4: the car charger is an electronic equipment, the owner in the process of use, do not put it in a humid environment for a long time, in order to avoid its internal electronic components caused by varying degrees of corrosion or oxidation. If you accidentally sprinkle water on the charger while driving, you should immediately remove it and wipe it dry to avoid damage to the circuit board.

Note 5: after the vehicle flameout, the on-board charger should be removed and placed. If it is plugged into the power interface for a long time, the contact part between the two may be rotten and difficult to remove. Although 80% of the vehicles are powered off after the key is removed, some of the vehicles are powered on continuously.

Careful use of car charger is on the one hand, on the other hand also need to pay attention to buy products with overload protection function.

The requirement of USB specification for current overload protection is no more than 5A. The reason why the vehicle charger needs overload protection is that when the output current is too large and exceeds its normal output value, the life of the charger components will be shortened, or the charger components will be damaged or even burned due to too high temperature. Therefore, the on-board charger used in the car must have overload protection measures.

2、 Select products with output current above 1a

The input voltage of vehicle chargers on the market is 12v-24v, the output voltage is 5V, and the output current is about 1A ~ 4a. However, some "Sanwu" or "Shanzhai" products generally appear the phenomenon of charging current virtual standard. If the mobile phone is charging when using navigation, the inferior charger will not only fail to provide normal charging, but also the power will continue to drop.

3、 Choose regular goods

To buy formal manufacturers through the certification of products, do not buy and use three no products, otherwise out of the quality problems, no complaints. In particular, you can't buy brands with less than 20 yuan. At present, the price of car chargers of mainstream brands in China is about 20-100 yuan. When you buy them, remember to buy the goods marked in Chinese.