Sometimes the chirping may continue even after the battery is replaced.
Kidde smoke alarm change battery.
The general rule is to replace the battery twice a year.
Kidde recommends replacing the batteries in all of your alarms at least once a year or any time the unit indicates that the battery is low.
Power source smoke alarms are powered by battery or by your home s electrical system.
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Once when you switch to daylight savings time and once when you switch back to daylight standard time.
Battery operated smoke detectors detect smoke from a fire.
When they detect smoke they begin to emit a loud warning alarm.
If the smoke alarm is powered by battery it runs on either a disposable 9 volt battery or a non replaceable 10 year sealed lithium battery.
This video shows how to replace the backup battery in a kidde 4973 optical smoke alarm.
Safelincs also offers replacement alarms for the kidde 4973 https w.
When the battery is low the alarm begins chirping every 30 seconds to indicate a new battery is needed.
Pull the smoke detector out from the mounting plate that holds it on the ceiling or wall.
Step 1 twist the kidde smoke alarm cover counter clockwise so that the locking tabs are released.