Change smoke alarm battery.
First alert battery replacement 9v.
This combination fire and co detector features a test silence button and tamper resistant locking brackets.
Rechargeable batteries are not recommended.
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That s why at first alert we recommend a 10 year sealed battery smoke alarm.
Use brand name duracell energizer or everready batteries with an expiration date 4 years from today s date.
The sensor is optimized to detect flaming fires such as those caused by paper kitchen grease and other fast combusting materials.
Use the plastic tab to gently open the battery compartment.
In this article you ll learn how to replace a 9v battery in a smoke alarm.
Use the single test button to check the functionality of the device.
It includes a 9 volt battery for backup and continued function in the event of a power outage.
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.
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.
9v has been the battery of choice for smoke alarms for many years.
Some first alert or brk alarm models run on a 9 volt battery or backup battery.
However nowadays it is more common to see two or three aas.
How to replace a 9v battery.
Remove the old battery.
The first alert sc9120b hardwired combination smoke and carbon monoxide alarm is a hardwire alarm with battery backup.
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.
Brk and first alert battery smoke alarms are designed to be easy to install easy to maintain and quality engineered for years of virtually.
Refer to the chart to find the right batteries for common first alert alarms.