Trouble is it’s not just batteries. Smoke alarms are only good for 10 years (as mentioned at the end of the article), a fact that folks often aren’t aware of or forget. Additionally, I’ll bet most folks don’t write the year of installation on their alarms, so if you move into an existing home, you may have no idea how old those alarms are, and might not think to just replace them out of an abundance of caution.
Trouble is it’s not just batteries. Smoke alarms are only good for 10 years (as mentioned at the end of the article), a fact that folks often aren’t aware of or forget. Additionally, I’ll bet most folks don’t write the year of installation on their alarms, so if you move into an existing home, you may have no idea how old those alarms are, and might not think to just replace them out of an abundance of caution.