A dead battery every morning is often a parasitic draw. Learn which modules to check first, how to test with a multimeter, and if it’s safe to drive your Ram 1500 in the meantime.
It’s one of the most frustrating mornings: you walk to your Ram 1500, turn the key, and the battery is dead — even though you didn’t touch the truck overnight. When this happens night after night, the most likely culprit is a parasitic draw: some module, lamp, or circuit is staying awake and pulling current while the truck is off. On many Ram 1500s the usual suspects are the infotainment system not going to sleep, a glovebox or map light left on, a sticking door-latch switch, power running boards, or a failing diode in the alternator.
