Use the plastic tab to gently open the battery compartment.
First alert battery replacement 9v.
Refer to the chart to find the right batteries for common first alert alarms.
Use brand name duracell energizer or everready batteries with an expiration date 4 years from today s date.
The first alert hardwired smoke alarm with battery backup comes equipped with an ionization sensor to provide the earliest possible warning of a fast flaming fire.
This combination fire and co detector features a test silence button and tamper resistant locking brackets.
Change smoke alarm battery.
Replacement battery types most detectors take aa or 9v batteries.
It includes a 9 volt battery for backup and continued function in the event of a power outage.
The sensor is optimized to detect flaming fires such as those caused by paper kitchen grease and other fast combusting materials.
Rechargeable batteries are not recommended.
The first alert sa300cn3 battery operated ionization smoke alarm is ideal for detecting fast flaming fires.
Brk electronics first alert sa302cn 9v dc dual sensor battery operated photoelectric and ionization smoke alarm upgraded to sa320b brk electronics first alert fg250ab 9v dc alkaline battery operated ionization smoke alarm brk electronics first alert 7010b 120v ac dc hardwired with 9v battery backup photoelectric smoke alarm.
That s why at first alert we recommend a 10 year sealed battery smoke alarm.
Brk and first alert battery smoke alarms are designed to be easy to install easy to maintain and quality engineered for years of virtually.
Perfect for general use in a home or business this alarm has ionization technology that detects smoke as soon it enters the chamber and sounds the siren.
Remove the old battery.
The first alert sc9120b hardwired combination smoke and carbon monoxide alarm is a hardwire alarm with battery backup.
In this article you ll learn how to replace a 9v battery in a smoke alarm.
The battery should be replaced once per year.
Use the single test button to check the functionality of the device.
How to replace a 9v battery.
The battery in your smoke alarm should be something that you can rely on.
However nowadays it is more common to see two or three aas.