Why does my battery go dead overnight what are the common electrical issues

Hi, my name is Devin. I am an auto repair expert with the Car Genius team here at RepairPal. I'm sorry to hear you're having trouble with your F-150. Common causes for a dead battery include issues like a faulty alternator, a malfunctioning relay, or an accessory that's drawing power even when the vehicle is off, such as a stuck door light, malfunctioning radio, or a problem with the fuses. Additionally, a battery nearing the end of its life can sometimes discharge quickly. A good starting point would be to have the alternator and battery tested. If those are fine, check for any signs of electrical components staying powered when they shouldn't. A technician can also perform a parasitic draw test to pinpoint the exact source of the drain. If you need more advice, have any other questions about your vehicle, or would like to get connected to a RepairPal Certified shop near you, we have you covered. Give us a call at 877-913-1554, and we will happily help you out!