1、Voltage instability when charging

The phone will generally open the charging monitoring and detection program when it is powered on, and if the program detects that the car charging voltage is unstable, it will prohibit charging.

2, the parameters do not meet the charging requirements

The output voltage and current of the car charger, if they support their digital products, such as the output current of 1A car charger to charge the tablet PC, is not charged into the power because the tablet PC needs 2A current. This is because the current is not enough to cause the need to replace the high-power car charger.

3, the car charger contacts poor contact

Some car charger contact design is not reasonable. There will be poor contact in the process of driving, and this will lead to the problem of charging.

4, the cigarette lighter itself power supply is not normal

If you replace multiple car chargers, cell phones, etc., and are unable to use the car charger in their cars normally for charging, it is time to check whether the car fuse problems lead to the cigarette lighter can not being powered.

5, the car charger itself quality problems

Now the market car charger brand has a wide range of products, good and bad, the price gap is significant if you buy shoddy products, not only can not charge but also likely to burn the car fuse and digital products.