Quote:
Originally Posted by retiredguy123
It's true that the battery is a backup, but when the battery dies, the smoke alarm will start to beep every few seconds and it will never stop until you replace the battery. It will drive you crazy, but at least your house won't burn down.
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Must be a new advanced smoke alarm. I've never seen one that will prevent your house from burning down. They are effective at alerting any occupants of smoke in the house though.