Kidde SMOKE AND CARBON MONOXIDE ALARM User Manual page 23

Battery Replacement
sound every 60 seconds.
The voice message "LOW BATTERY" will sound once
every fifteen minutes during the chirp only cycle, and
will continue for at least seven days.
If the red LED light flashes along with a chirp
every 30 seconds, and is not followed by the voice
message "LOW BATTERY" as described above,
your unit has malfunctioned. Call our free
Consumer Hotline 0800 917 0722 (Monday to Friday
9am - 5pm) for instructions on how to return the unit.
Refer to Step 1 on page 8 for information on
installing the batteries.
Replace batteries with one of the following approved
brands of Alkaline batteries: Duracell MN1500, MX1500 or
Energizer E91.
WARNING! Use only the batteries specified. Use of
different batteries may have a detrimental effect on the
Smoke/CO alarm. A good safety measure is to replace
the batteries twice a year, at the same time you change
your clocks for daylight saving time.
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