Why would the time and date be reset to default settings if my DrivePro dashcam is not in use for a long period of time? Category : Setup / Operation If your DrivePro is not connected to a power source for a long period of time, the internal backup battery will eventually drain.Therefore, the time and date will be automatically restored to the initial state when you next start your DrivePro. Is the answer helpful? Related Why does Transcend include the Proposition 65 warning? What should I know about the GPS function? Can I purchase DP250 and DP10 separately to replace DP620? Can they altogether perform the same functions as DP620? Technical Support If the answer can't help you, you can contact the Tech Support Department Get Started