Kidde recommends replacing the batteries in all of your alarms at least in one case a year, or whatsoever fourth dimension the unit indicates that the battery is low. The general rule is to replace the battery twice a yr: once when y'all switch to daylight savings fourth dimension, and once when you switch back to daylight standard time.

When the battery requires replacement, the alarm will sound with a brusque beep or chirp. At this time, you must remove the old battery and replace it with a fresh battery of like brand. Here's how to change the bombardment in your smoke detector:

To supercede batteries in models with rear-loading batteries

If your tamper-resist pin is engaged, it will need to be removed. If yous accept a tamper-resist locking tab, it will need to be pushed in with a screwdriver before you can twist the alarm and remove it from the bracket.

  • Remove the alert from the mounting plate by twisting information technology in the management of the Off arrow on the plate.

  • If you have an Air-conditioning Hardwired (Interconnected) alarm, y'all 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 alarm.

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

  • Insert the battery by first pressing the red battery reminder finger down into compartment. NOTE: Exist sure the battery's connectors (+ and -) line upwards with the metal plates inside the battery compartment.

  • Once the battery is installed, close the compartment door and printing the test button to make sure the unit operates on battery only before installing the unit back on the ceiling. If the unit does not sound, re-open the bombardment compartment door to brand sure the red reminder pins are pressed down and that the batteries are lined upwards properly.

  • If you accept an AC Hardwired (Interconnected) alarm, yous will then need to re-connect the Quick Connect wire harness to the back of the alarm before installing the unit back on the mounting bracket. Line upwardly the Quick Connect wire harness holes with the pins on the back of the alarm. Then, clasp the wire harness' plastic prongs together and button the wire harness into the unit until information technology snaps into place.

  • Re-install the alarm onto the mounting subclass by twisting it in the direction of the On pointer on the plate.

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

To replace batteries in models with forepart-loading batteries

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

  • Insert the battery into the compartment. Make certain the bombardment's connectors (+ -) are facing out. Line upward the plus (+) and minus (-) connectors with the yellow label on the bottom of the battery compartment.

  • Once the battery is inserted, printing down on the battery compartment door until it snaps into the airtight position. If the battery door slides open, make sure it's open all the mode before removing and installing the new bombardment(ies). For models using AA batteries, make sure the contacts are not facing the same direction.

  • replacebatteries

  • NOTE: A missing or improperly installed battery will preclude the battery compartment from endmost.

  • Press the test button to make certain the unit operates on battery only before installing the unit dorsum on the ceiling. If the unit of measurement does not audio, re-open the battery compartment door to make certain that the batteries are lined up properly.

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

Back to Support Centre