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Smoke Alarm - Smoke Detector - Low battery chirp

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Uploaded on Nov 6, 2011

How to change a battery in a smoke alarm that is powered from 120Vac and has a backup battery.
View my other video - How to Change your old smoke alarm - https://www.youtube.com/watch?v=X0iT0...
Check out my other video - how to clean a pool filter - http://www.youtube.com/watch?v=MvjS9f...

You should press the test button periodically to test the unit and change batteries once per year.

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