Comment on Killed by GoogleparentComments−doublerabbit3yWhy not just replace the battery?In the UK you just unscrew and replace the battery. Not a hard task.−extraduder_ire3yModern smoke detectors have a service lifetime of about ten years, and won't work as well after that. So an expired one will keep beeping even after you change the battery. As a result, some don't even come with replaceable batteries.CO alarms are more prone to this, I think.
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Why not just replace the battery?
In the UK you just unscrew and replace the battery. Not a hard task.
Modern smoke detectors have a service lifetime of about ten years, and won't work as well after that. So an expired one will keep beeping even after you change the battery. As a result, some don't even come with replaceable batteries.
CO alarms are more prone to this, I think.