CASPER, Wyo. Casper firefighters want to remind you it's important to keep smoke detector batteries fresh.
It's also important you check and replace them, even if your detector only uses a battery back-up.
Firefighters say fresh batteries could be the difference in an emergency.
"Alerting persons who are in the building to the presence of smoke and fire is going to be the number one thing that is going to help prevent injury and death in the event of a fire." Said Firefighter Dane Andersen.
If you need help changing batteries or testing detectors, Andersen says to call the fire department's main non-emergency line.