I have a 1000w inverter hooked up to a small LCD TV along with a marine deep cycle battery. Can anyone tell me why the inverter stops working after just an hour of use on a full charged battery?
Some inverters have a ridiculously sensitive low-voltage shutdown. I think the idea is that by having this “feature”, a person using the inverter while attached to a car battery would not be able to drain his car battery enough such that it would not still start the car.
Or as others have mentioned, load test the battery. Voltage alone is meaningless, even a bad batter can test at 12+ volts, but put it under load and it collapses.