How long can a 12v battery run a TV?
The simple, and flawed, answer is that a 12V/20AH battery will supply 12*20 = 240 Watts of power for an hour. So if you use 35W, the battery will last 240/35 = 6.8 hours. This is the theoretical answer.Click to see full answer. Keeping this in view, can you run a TV off a 12v