Which dash cams continue working after the car is turned off?
2 Answers
Use a dash cam equipped with parking surveillance, also known as motion detection function. Below is extended information about the motion detection feature: Working conditions for parking surveillance: The parking surveillance function requires the dash cam to have a built-in battery or be connected to the ACC fuse for power supply. After the vehicle is turned off, it automatically enters parking surveillance mode, where sensors continuously monitor the vehicle's condition. If any abnormality or vibration is detected, it automatically records surveillance footage and saves it separately. Protecting the battery: Compared to being connected to constant power, dash cams with parking surveillance connected to the ACC fuse are more power-efficient and have less impact on the car battery. However, if the vehicle is left unused for several consecutive days, it may still lead to battery drain and starting difficulties.
As a car enthusiast, I often tinker with dash cams. The ability to keep recording after the car is turned off mainly depends on power supply design. Some dash cams come with built-in lithium batteries that can continue recording for several hours after shutdown, suitable for short-term parking; more advanced models use hardwiring kits connected to the vehicle's battery or fuse box, providing 24/7 monitoring. However, be aware that this increases power consumption - it's best to choose models with low-voltage protection to avoid draining the battery. From a security perspective, its ability to automatically activate upon detecting vibrations or moving objects makes it extremely useful for theft prevention and scratch protection. Operationally, setting up parking mode via an APP is simple and convenient, significantly reducing parking risks - especially a blessing for night owl car owners.
