Smoke detector still pinging after replacing the battery

I have a First Alert smoke detector which was purchased earlier this year. Can’t find the manual. I just replaced the 9 volt battery with a brand new battery from a sealed package (Panasonic alkaline plus 9V – number on the bottom says 01 2014) and the detector is still making that noise it makes when the battery is about to die. Earlier this year I believe somebody posted a site that provides manuals for […]

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