A 12V DVD player is a portable entertainment device designed to operate on a 12-volt power source, typically found in vehicles. . Energy usage based on the average DVD Player wattage of 16. These players are perfect for road trips, camping, or any other situation where you need to entertain yourself or others without access to a. . The average DVD player uses between 5 to 15 watts. Although this device is around. Based on that picture and the rated capacity I'd assume it has two 18650s inside, or it might be using LiPo pouches.