Is there a charging port on the ETC device?
2 Answers
The port on the ETC device is not for charging; it is a data port used for factory testing of the equipment. Mistakenly using it for charging may damage the device. The ETC system operates through wireless communication and data exchange between the onboard unit installed in the vehicle and the antenna on the toll station lane. It mainly consists of an automatic vehicle identification system, a central management system, and other auxiliary facilities. The ETC system uses automatic vehicle identification technology to establish wireless data communication between the vehicle and the toll station, enabling automatic vehicle recognition and exchange of toll-related data. It employs computer networks to process toll data, achieving a fully automatic electronic toll collection system without the need for stopping or toll booths.
Speaking of the cigarette lighter socket in the car, I often use it for charging. It was originally designed for lighting cigarettes, but with an adapter, it can function as a charging port to power devices like phones and GPS units. Nowadays, many cars also come with standard USB ports, making it even more convenient to plug in directly—just connect your phone when it runs out of battery while driving, hassle-free. It’s important to choose an adapter with the right power rating and not exceed the socket’s capacity. Once, I used an oversized device and blew a fuse, requiring a trip to the repair shop for a replacement. Regularly cleaning the socket to prevent dust buildup is also crucial, especially for long trips where this feature proves both safe and practical.
