Can YI Smart Dashcam use a portable USB battery pack as its power source? Yes, it can use a portable USB battery pack as its power source. Related articles Is Bluetooth remote control supported by YI Smart Dashcam? What is the operating temperature for YI Smart Dashcam? Can YI Smart Dashcam be charged by the 12v in-car battery? What is the designed capacity of the built-in battery? Kami Indoor Wall Mounting Diagram