What is the reason for frequent disconnection of the car USB?

1 Answers
MacSienna
07/30/25 9:57am
Introduction to the reasons for frequent disconnection of car USB: 1. Poor USB contact; 2. Unstable USB power supply. Additional information: 1. Functions of the USB interface in cars: Inserting a USB drive to listen to music, charging mobile phones and MP3 players, USB car cigarette lighter interface, electronic dashcam interface, charging computers and tablets. 2. Working principle: The power supply in the car converts DC-12V or DC-24V to DC5V, and then uses the unified USB interface to transfer the DC-5V output to charge the corresponding electrical devices. Because different electrical devices have different power requirements, the power of the USB car charger also varies greatly, mainly depending on the current output of the USB car charger.
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