Remove the old battery.
First alert battery replacement 9v.
9v has been the battery of choice for smoke alarms for many years.
This combination fire and co detector features a test silence button and tamper resistant locking brackets.
Brk and first alert battery smoke alarms are designed to be easy to install easy to maintain and quality engineered for years of virtually.
The battery in your smoke alarm should be something that you can rely on.
Brk electronics first alert sa710ab 9v dc alkaline battery operated photoelectric smoke alarm brk electronics first alert sa3210 dual sensor dc 10 year sealed lithium battery powered photoelectric and ionization smoke alarm brk electronics first alert 4120b 120v ac dc hardwired with 9v battery backup ionization smoke alarm upgraded to 9120b.
Rechargeable batteries are not recommended.
The battery should be replaced once per year.
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.
Use brand name duracell energizer or everready batteries with an expiration date 4 years from today s date.
Use the single test button to check the functionality of the device.
How to replace a 9v battery.
However nowadays it is more common to see two or three aas.
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.
The first alert sc9120b hardwired combination smoke and carbon monoxide alarm is a hardwire alarm with battery backup.
Some first alert or brk alarm models run on a 9 volt battery or backup battery.
It includes a 9 volt battery for backup and continued function in the event of a power outage.
The first alert sa300cn3 battery operated ionization smoke alarm is ideal for detecting fast flaming fires.
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.
Use the plastic tab to gently open the battery compartment.
Refer to the chart to find the right batteries for common first alert alarms.
In this article you ll learn how to replace a 9v battery in a smoke alarm.