Why can't the car USB recognize the phone?

1 Answers
JaxonRose
07/30/25 5:19am
Car USB only charges but does not recognize the phone because the power of the car USB port and the phone port is insufficient. USB car charger: Usually referred to as USB car charger for short. It takes advantage of the universality of USB, which is widely used in various charging interfaces. Combined with its application in cars, it converts the 12V-DC and 24V-DC in the car into the common DC-5V voltage for USB and other charging devices. Common specifications of USB car chargers: Output: 5V-DC-500mA; 5V-DC-700mA; 5V-DC-1000mA; 5V-DC-2000mA.
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