How To Change Smoke Detector Battery Youtube. Installing the new batteries incorrectly or using the wrong type will cause your smoke detector to not function. Press and hold the TestReset button for 10 seconds to fully discharge the detector.
If its locked you may need to remove the tamper-resistant locking pin. How to and when to change the batteries on your Smoke Detector and Carbon Monoxide Detector. Make sure the negative and positive connections match the labels in the smoke detector.
Once you remove the cover of the detector its easy to see how to change a smoke alarm battery.
Check the battery type. The battery compartment should be visible on the back side of the detector remove the cover and replace the battery. Smoke alarms with any other type of battery need a new battery at least once a year. Gently open the cover or detach the detector body from its base with a slight twisting motion.
