Where to Connect the Power Supply for a Dash Cam?
4 Answers
Dash cam power can be connected to the cigarette lighter socket or to the ACC power in the fuse box. Dash cams typically have both built-in and external power interfaces. The built-in power source is usually a lithium battery, while the external power is generally supplied through the cigarette lighter. For driving safety considerations, the capacity of the built-in battery is usually very small, as lithium battery capacity is limited. Therefore, dash cams primarily rely on external power sources. A dash cam is a device that records images, sounds, and other relevant information during vehicle operation. After installation, it can record the entire driving process in video and audio, providing evidence in case of traffic accidents. The recorded video footage from a dash cam should not be edited, as edited footage may not be useful in determining liability after an accident.
I connect my dash cam's power to the cigarette lighter socket, which is the most convenient option. Simply plugging in the dedicated cigarette lighter adapter provides direct power, and the camera automatically turns on when starting the vehicle. However, I've encountered power cuts when parked, leaving it unable to monitor collisions, so I explored alternative wiring methods. Now, I connect the power cable to a constant power position in the car's fuse box, using a voltage step-down cable to maintain 24-hour recording. During installation, I first check the vehicle manual to find a suitable fuse slot to avoid overcurrent damage to the battery. The whole process is straightforward and takes less than 20 minutes, making it suitable for DIY by average car owners. Just remember to check for loose wiring to ensure safe driving.
As a hands-on DIY enthusiast, I've tried several wiring methods for dash cam power. The cigarette lighter is the quickest option, but sometimes takes up space. I prefer connecting to the OBD port or fuse box for stable hardwired power. The OBD port is easily accessible below the steering wheel—just plug in an adapter cable. For the fuse box, you need to identify a constant power source using a multimeter to prevent short circuits. I also added a fuse for overload protection. When setting up parking mode, configure low-voltage protection to avoid draining the battery. After installation, test the recording function multiple times to ensure everything works. The whole process is quite enjoyable and enhances driving safety.
Bro, I usually plug my dash cam power into the cigarette lighter socket for quick use. But if you want to record incidents while parked, it's better to connect it to the fuse box or a constant power USB port. Buy a step-down cable and install it yourself, just avoid the high-voltage areas. The installation spots are typically under the driver's seat or near the engine compartment – make sure to secure the wires properly and keep them clear of the pedals. This way, the cam will automatically work whether the car is started or turned off, without dropping frames. Occasionally check its status via a mobile app to ensure stable power supply.
