1. Look for big brands
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Because the entry threshold of the car charger industry is relatively low, the market is full of many uneven car charger products, so try not to choose the brand you have not heard of when buying, the quality of the big brand products is more guaranteed, will have over voltage, over current, overheating, short circuit protection and other functions, and it is safer to use.
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2, look at the material and design
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Common materials are plastic (must be flame retardant material) and metal two kinds, although there is no superior points, but the metal car charger often has a higher level in design, such as the use of CNC, polishing, radium carving, electroplating and other processes, so the overall appearance level is a higher grade, feel much better, of course, the price will be obviously more expensive.
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3, fast charging is essential
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Now the mobile phone supports more and more fast charging, although the car charger is only to meet the fragmented charging needs, the speed is also the faster the better, if the charging is too slow, the mobile phone navigation when the charge is not even enough power consumption. Whether it supports fast charging mainly depends on its output parameters, 5V\/1A, 5V\/2.1A, 5V\/2.4A are very common, mainly to see whether it supports QC3.0 and other fast charging protocols. Some car chargers both USB ports support fast charging, some only one support fast charging, you can choose on demand.
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In addition, some car chargers now begin to be equipped with USB-C interface, and support USB PD fast charge, it is also a very practical function, because more and more mobile phones are using USB PD fast charge technology, such as iPhone8\/8P\/X, Xiaomi 6, Huawei P10, nuts Pro2 have supported USB PD fast charge, There is a need for this to be looked at.
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4. Look at the details
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The details mainly look at what the indicator is like, it is recommended to choose a ring indicator, more design sense than the dot indicator, it is best not to be blue, too high profile, and slightly low, and some car charger indicator lights are dazzling, and even affect driving at night, especially not recommended.
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5. Digital display is optional
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Now there are many car charging are added to the digital display function, the biggest advantage is to monitor the car battery voltage in real time, deviate from the normal value after the timely processing of anomalies, in addition, it can also show the specific state of the device charging, such as whether the charging current has reached the fast charging standard, in general, the use is not too much, is a function of dispensability.
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The price gap of car charger is very large, from a dozen to hundreds of pieces, for the sake of safety, it is recommended to choose more than 50 yuan products will be a little more reliable, in addition, you can refer to the five aspects mentioned above when buying, especially to support fast charging, the car charging is not only stable but also faster, which is the inevitable result of the current mobile phone fast charging technology is fully popularized. s