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Daylight Saving Time Reminder – Change Batteries and Test Smoke/CO Alarms

change smoke/co alarm batteries
Change smoke/co alarm batteries yearly

With the start of daylight saving time this weekend (2 a.m. Sunday, March 8), make sure you replace smoke and carbon monoxide (CO) alarm batteries and test the alarms. The Seattle Fire Department recommends replacing batteries yearly or as needed.

Changing smoke and CO alarm batteries at least once a year is an effective way to reduce home fire deaths and CO poisoning. Working smoke alarms can cut the risk of dying in a home fire by nearly one-half  by providing an early warning and critical extra seconds to escape. Consider installing a long-life battery powered smoke/CO alarm to avoid yearly battery replacements.

Every home in Seattle should have the protection of smoke/CO alarms. The Seattle Fire Department can install 10 year long-life combination smoke/CO alarms free of charge in homes where the homeowner is either an older adult, living on a low income, or has a disability. If you live outside the city of Seattle, please contact your local Fire Department to request assistance.

To request a free smoke/CO alarm from the Seattle Fire Department fill out an online form or call (206) 386-1337 or email

Learn more about smoke/CO alarms.