To change a smoke alarm battery, start by locating the battery compartment. This is usually found by twisting the smoke alarm counter-clockwise to remove it from its mounting bracket. Once you’ve removed the alarm, access the battery compartment by pushing or sliding a tab or lever. Remove the old battery and insert a new one, ensuring the positive and negative terminals are correctly aligned with the markings on the battery compartment. Finally, test the alarm with the new battery by pressing the test button to ensure it’s working.

Detailed Steps

1. Remove the Smoke Alarm

Most smoke alarms twist counter-clockwise to detach from their mounting bracket.

2. Access the Battery Compartment

Depending on the model, you may need to push a tab, slide a lever, or simply pop open a door to access the battery compartment.

3. Remove the Old Battery

Gently pull the old battery out of the compartment.

4. Install the New Battery

Insert the new battery, ensuring the positive and negative terminals are aligned with the markings on the battery compartment.

5. Close the Battery Compartment

Ensure the battery compartment is securely closed.

6. Test the Alarm

Press the test button to verify that the new battery is working and the alarm is functioning correctly.