Smoke alarm batteries need to be replaced every year. For most people, it’s not very easy to remember birthdays from one year to the next, much less the exact date to change smoke alarm batteries. Use the calendar on your smartphone to set a reminder for yourself.
Smoke alarms themselves need to be replaced every 10 years – if you can’t think of the last time you bought new alarms, maybe it’s time to do that now. Visit the National Fire Protection Association website to learn more about maintaining your smoke alarms.