How often should I change the batteries in my smoke alarm?

Smoke alarm batteries should be changed with new batteries at least once a year.  However, twice a year is recommended.  An easy way to remember this is during time change in the Spring and Fall.

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1. Does the Paragould Fire Department install smoke alarms?
2. Does the Paragould Fire Department provide smoke alarms?
3. My smoke alarm is chirping. What is wrong?
4. How often should I test my smoke alarm?
5. How often should I change the batteries in my smoke alarm?
6. Do I still need to worry about testing or changing the battery if I have hardwired smoke alarms in my home?