How Do You Change Smoke Detector Battery. Be sure the battery is new so that it lasts the full ten-year life expectancy of most home smoke detectors. You can know this by the and - markings on both the battery and the smoke detector.
Or consider a switch to a newer model of smoke alarm with a. Most smoke detectors must be removed from the ceiling to replace the battery though some do have a front-loading door. 1 Remove the smoke alarm from its bracket.
Black 120V Power white Neutral and red or.
Dont worry the tamper alert will clear when you reattach the Sensor to the base. Hold the test button for at least 5 seconds. Everyone in the household should know the escape plan for when the smoke detector goes off. 4 Test the detector.
