Can a dash cam be powered via USB interface?
1 Answers
A dash cam can be powered via USB. Dash cams are simple devices with low current consumption, and any 5V power port can be used, as the standard USB voltage is 5V. Additional information: 1. Limitations in meeting operational requirements: While USB power is feasible, it has certain limitations. Some vehicle models may experience current fluctuations during startup, which could potentially damage the dash cam. Moreover, USB power is not suitable for long-term unplugged use, and some vehicles' USB ports may not provide power after the engine is turned off, failing to meet the dash cam's 24-hour operational needs. 2. Aesthetic concerns: Typically, dash cams are plugged into the cigarette lighter power socket. If exposed wiring is visually unappealing, the socket can be disassembled to access the internal circuit board. A 12V power input can then be supplied from the ceiling or other areas near the dash cam, with voltage reduction to power the device. 3. Voltage reduction measures: Since dash cams generally require a 5V input voltage and car batteries provide at least 12V, standalone voltage reduction modules meeting the requirements can also be purchased online to power the dash cam.