You know when to change the battery in your smoke detector because it starts beeping or chirping. When the battery starts to get weak you may only hear the chirp once every few weeks, but when the battery is getting really weak you will hear the beep or chirp every few minutes. That’s when it’s time to change the battery. Now how do you know when it’s time to change out your smoke detectors because they are too old and may not even work at all? Read More
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