An impact-resistant portable container protector used during transportation of a liquid, wherein the portable container protector is capable of heating or cooling a liquid within the container during transportation in an automobile or other mobile vehicle. The heating is typically achieved using an electrically-powered heating jacket, or cooling is achieved using a removable cooling packet which may be placed within the impact-resistant portable container protector. Heat transfer from the heating jacket or cooling packet may be improved by use of an agitator which may be present within the container. The agitator may be turned by a magnetic coupling. Power to operate the heating jacket and the agitator, when present, is supplied by a battery which is internal to the portable container protector. Additional power may be supplied to the battery using an external power feed such as a USB type connection or other connection of the kind typically present in an automobile or other motor vehicle.