Does the Dash Cam Still Record After the Car Power is Off?
2 Answers
After the car power is turned off, the dash cam can still record for about 30 seconds. This is mainly due to the residual power inside the dash cam, which is relatively low, so the recording time is also very short. Generally, the dash cam is connected to the car's battery. If the car's power is turned off and the dash cam does not have a parking recording function, it will usually stop recording after the car is parked. The dash cam is an instrument used to record video and audio during the vehicle's operation. By installing a dash cam, it can record the video and audio during driving, which can serve as evidence in the event of a traffic accident to protect the driver's legal rights. The dash cam is equivalent to the black box of a car, but the video data inside cannot be edited. Once edited, it cannot be used as evidence to assist in traffic accidents. All dash cams consist of a host, sensors, data analysis software, and an infrared camera. The video data from the dash cam can be viewed through the corresponding mobile app.
A few days ago, my car shut down, and the dash cam stopped working too. I thought it was malfunctioning and not recording. Later, I learned that standard devices rely on the car's cigarette lighter power. Once the engine is turned off or the battery is disconnected, the power supply is cut off, and it automatically shuts down and stops working. Unless your dash cam has a built-in lithium battery or supercapacitor that can last 5-15 minutes after power loss, triggering parking monitoring like collision detection. I tried one brand, but the battery life was a bit short, and it failed faster in cold weather. I recommend choosing a model with a built-in backup power source when buying a car, or connecting an external power bank to extend recording time to prevent unexpected incidents—don’t regret not checking earlier like I did. Also, pay attention to battery maintenance to avoid over-discharging, which affects durability.
