Very late Sunday evening, after listening to our car radio at the beach for over 3 hours, our car would not start. Eventually we got the RAC breakdown service to come and get us started. Our radio listening flattened our near new battery! I had no idea that the modern car radios can not be sustained for long by the car’s battery. Beware, and take the precautions I recommend in the video. My wife was in medical distress before we left for home.