User Guide
Battery Installation and Replacement
To install or replace the batteries in this Kidde CO alarm, please perform 
the following steps. 
1. Slide open the bottom cover to expose the battery compartment.
2. If replacing batteries, remove the old batteries and properly dispose 
of them as recommended by the battery manufacturer.
3. Install the new batteries. Note the polarity 
illustration in the battery compartment. 
4. Close the bottom cover. Note: The bot-
tom cover will not close if all three AA 
batteries are not installed.
When replacing the batteries, use one of 
the following approved brands: 
  • Duracell  MN1500 or MX1500 
 • Energizer E91
  • Gold Peak 15A
  • Golden Power GLR6A
These batteries can be purchased where you bought the alarm or at a 
local hardware store. Use of a different 
battery may have a detrimental effect on the alarm operation.
IMPORTANT: Constant exposures to high or low humidity may reduce 
battery life. A good safety measure is to replace the battery at least 
once a year, or at the same time as you change your clocks for daylight 
saving time.
After installing or changing the batteries, reinstall your alarm. Test 
your alarm by using the Test/Reset button and check that the green LED 
flashes once approximately every 30 seconds.
4. Installation Instructions
Battery Polarity
for the three AA batteries
+
+
-+
-
-
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