Old Man Chu back again with a video on how to change a smoke alarm battery. The other day someone left the stove on, and no one noticed it but the house was full of smoke. Today we are checking if the smoke detector works so I just put a direct flame. So I took it down. I opened it up and changed the battery. This is a simple device that can save your life so pay attention. Old man chu knows what to do. I put it back up, tested it and it beeped so it's good to go. Almost burn down the house so be careful once you test it.
Disclaimer: Loud sound watch your ears. Do not try to set a fire at home.
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