From Safe Kids USA

When it’s time to “fall back” and change the clocks on Sunday, November 1, make sure to change the batteries in all of your smoke alarms – it could save your life.

Did you know that having a working smoke alarm reduces a person’s chance of dying in a fire by half? For the best protection, install smoke alarms on every level of your home, outside every sleeping area, and in every bedroom. Smoke alarms should be mounted high on walls or ceilings, and tested monthly.

It’s important to replace smoke alarm batteries once a year, unless they’re 10-year lithium batteries. Even if your smoke alarms are hardwired, replace the batteries in case of a power outage.