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. The general dominion is to replace the battery twice a yr: once when you lot switch to daylight savings fourth dimension, and once when you switch dorsum to daylight standard time.

When the battery requires replacement, the warning will sound with a short beep or chirp. At this time, you must remove the old battery and replace it with a fresh battery of similar make. Here'south how to change the battery in your smoke detector:

To replace batteries in models with rear-loading batteries

If your tamper-resist pin is engaged, it will need to exist removed. If you have a tamper-resist locking tab, it will need to exist pushed in with a screwdriver before y'all can twist the alert and remove it from the bracket.

  • Remove the alarm from the mounting plate past twisting it in the direction of the Off pointer on the plate.

  • If you accept an AC Hardwired (Interconnected) alarm, you will demand to remove the Quick Connect wire harness from the back of the alarm by squeezing the plastic prongs and pulling the wire harness out of the warning.

  • After the warning has been removed, open up the battery compartment door.

  • Insert the battery by starting time pressing the crimson bombardment reminder finger down into compartment. Note: Exist sure the bombardment'south connectors (+ and -) line up with the metal plates inside the battery compartment.

  • Once the battery is installed, close the compartment door and printing the test button to brand certain the unit operates on battery only before installing the unit back on the ceiling. If the unit of measurement does non sound, re-open the battery compartment door to make sure the cherry-red reminder pins are pressed down and that the batteries are lined up properly.

  • If yous have an Air conditioning Hardwired (Interconnected) alert, you will then demand to re-connect the Quick Connect wire harness to the back of the alarm before installing the unit dorsum on the mounting bracket. Line upwardly the Quick Connect wire harness holes with the pins on the dorsum of the alert. And then, squeeze the wire harness' plastic prongs together and push the wire harness into the unit until it snaps into place.

  • Re-install the alarm onto the mounting bracket past twisting it in the direction of the On arrow on the plate.

For detailed instructions and diagrams, consult your user's transmission.

To replace batteries in models with front-loading batteries

  • Open the battery compartment door by pressing down on the battery compartment door, then release to allow the door to popular open. Pull the bombardment straight out of the compartment.

  • Insert the battery into the compartment. Make sure the battery's connectors (+ -) are facing out. Line upwardly the plus (+) and minus (-) connectors with the xanthous characterization on the bottom of the battery compartment.

  • Once the bombardment is inserted, press downwardly on the battery compartment door until it snaps into the closed position. If the battery door slides open, make sure it'south open all the way before removing and installing the new battery(ies). For models using AA batteries, brand certain the contacts are not facing the same direction.

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  • Annotation: A missing or improperly installed battery volition prevent the battery compartment from endmost.

  • Printing the examination button to make certain the unit operates on battery only before installing the unit back on the ceiling. If the unit of measurement does non sound, re-open the battery compartment door to brand sure that the batteries are lined up properly.

For detailed instructions and diagrams, consult your user's manual.

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