A:AnswerYes you should not have any interruption at all!! The power should last at least 30 minutes! Just make sure you plug into the battery outlet side!
A:AnswerYes i use it on all my Direct tv and large(65 inch) TV because our power goes on and off a lot and it gives me time to let the power settle down or time to shut the systems down NORMALLY. I have 2 ups for different Tvs
A:Answerobviously not if in area where long power outages use backup generator most refrigerators will keep thing cold for 12 15 hours if not excessivly hot and you stay out of it
A:AnswerPress and hold the power button until itbgoes off. Then, press it again until the unit comes on. Should clear the beeping. Unless you have a bad battery.