Understand the auto protection function of car charger
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Whether the car charger has overvoltage, overcurrent, overheating, and short circuit protection functions, the shell is best to use ABS flame retardant environmental protection materials, which can prevent external combustion and beautiful, and leave no fingerprints.
Note the voltage and current
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When purchasing a car charger, pay attention to the voltage and current size of the supporting equipment, such as iphone 5V\/1A, tablet computers, mobile power is 5v\/2A. If you charge mobile phones and tablets at the same time, the total current of the car charger should be at least 3A or above, otherwise the charging speed will not only decrease significantly, but also overheat and even break the device.
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Reliable brand quality is guaranteed, and the use of rest assured, this truth I believe there is no need to say more. Although the price is generally more expensive than the inferior car charger, but if the cheap, the quality of the problem, it is certainly no way to complain.
Try to choose a big brand, the vehicle voltage is unstable, the damage to the equipment is great.