Tv Battery Backup

There may be a excessive pitched noise in my kitchen but I can't tell what/the place it is coming from, what may want to it's?
When I woke up this morning I ought to listen a faint high pitched noise. We assumed it was the backup battery for the tv however I close that off and may want to although pay attention the noise. It without a doubt sounds the loudest within the kitchen, most of the time towards the ceiling? It is demanding to inform precisely where the sound is coming from, and not anything is on in the kitchen so I am really stumped! Any recommendations?
Competently It's not that i am confident what did it but I unscrewed three of the ground flourescent bulbs and then I also reached over and unplugged the toaster and the microwave after which a minute later the noise stopped. I also pointed out after I ran house to try unplugging the bulbs that there is software function taking place simply down the street, should that have had an impact on something? Anyway thank you for each of the ideas I'm a brand new owner of a house and that i comprehend it!!!
unplug your fridge, can you nevertheless listen it ?
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Tagged with: battery backup • computer • computers • electronics • lcd tv battery backup • plasma tv battery backup • shopping • tv • tv battery backup
Filed under: Batteries
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