- Dec 26, 2017 -
Car charger 2.1a is very slow to charge the phone, is it related to the USB cable?
Car charger is more stable, a lot of charge treasure output is not stable, sometimes does not charge, if you often drive, it is better to buy a cigarette lighter charger output, 2.1A is the best, and the output current of the charging speed, the general mobile phone charger is about 1A, 2.1A will accelerate the charging speed.
In addition, the car charger is also related to ordinary charging and fast charging. QC2.0 and QC3.0 charge fast. Of course, the USB data line also needs to be the best current from 2A to 2.4A.