Smoke alarm alarm

Bert Coules · 2021-01-15T17:15:59+00:00

I have a mains smoke alarm with a 9v battery backup. It started to beep: regular beeps at roughly ten second intervals for something like a minute, then a long silence before it started again.According to the manual this is the battery-low warning, so I took off the cover, removed the battery - and then discovered that I didn't have a replacement.I replaced the body of the unit without the battery - and it's still beeping. Not regularly this time but seemingly at random: beep... beep beep beep... beep beep. Again this is for about a minute at a time. There's nothing in the manual about this and it seems too irregular for a built-in "no battery present" warning (and if there was one, I imagine the instructions would mention it).I don't want to turn the alarm off overnight but I think I might have to.Has anyone else encountered this or something similar?Thanks.

Smoke alarm alarm

Jan 15, 2021 Last reply: 5 years ago 23 Replies

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Fred 5 years ago

I havent seen it before, but its my only device that uses those batteries and I replace that battery very rarely, only after a few years.

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Bert Coules 5 years ago

Well, quite. But I could imagine some users being tricked into thinking that Duracells have some unique property and that any other (especially cheaper) make might not function correctly - and for a safety device that could be worrying.

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Jimmy Stewart 5 years ago

and their no leak guarantee is not worth the paper it might be written on.....

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Dave Plowman (News 5 years ago

Most instructions for this sort of thing contain reams and reams of totally irrelevant information. To please the lawyers. To the point where few read them carefully.

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