How many days of footage does a dash cam usually save?
2 Answers
Dash cam footage is typically saved for three days to one week, with the actual duration determined by the memory card capacity. A 16GB memory card can store approximately 100 minutes; a 32GB card can store about 200 minutes; and a 64GB card can store around 400 minutes. The reason for time reset on dash cams is either the absence of a battery or the battery being depleted. The battery in dash cams is primarily designed to prevent sudden power loss in the vehicle, which could lead to shutdown and affect video integrity. Some car owners opt for dash cams without batteries for safety reasons, which is incorrect because without a battery, the time and other functions need to be reset every time the device is powered on.
The recording retention period of this dash cam isn't fixed. With my 64GB card recording 1080P footage, it lasts about a week. Three key factors determine this: larger storage cards last longer (a 128GB card can store roughly half a month's footage); higher video resolution consumes more space (4K doubles the storage demand); and loop recording settings matter - I prefer 5-minute segmented recording for faster overwriting of old clips. Don't forget parking mode either; when activated, vibration-triggered recordings get locked from overwriting, accelerating storage consumption. Learned this the hard way last year when my 32GB card suddenly filled up during an accident. Now I always keep two 128GB cards in rotation, manually formatting them monthly for reliable operation.
