Project Overview

Working smoke alarms reduce the risk of fire in your home and help protect the lives of the whole household. Make sure your smoke alarms are working properly by testing each one and replacing their batteries at least once a year. This video shows you how quickly and easily you can change a battery by yourself.
Continue to Step-by-step instructions.
Time Required

Quick Fix

Quick Fix

A quick fix project usually takes around 1-2 hours

View the video

Quick Tip

Smoke alarms are an important part of protecting your home and family from the dangers of fire. Every smoke alarm has a test button to make sure that the battery isn’t flat and the siren is still working. But you don’t need to climb all the way up to the ceiling to press the button. Just get a long handled broom or mop and use that instead.

Step by Step Instructions

1 Remove the smoke alarm from its bracket
2 Replace the old battery with a new one
  • Step 1. Remove the smoke alarm from its bracket

    Battery-powered smoke alarms are usually secured to the ceiling using a basic click-in-to-place bracket. Climb up the ladder and remove the alarm from the bracket. Every alarm model has a different way of doing this, but normally you either turn the alarm or slide it out to release it.
  • Step 2. Replace the old battery with a new one

    It’s safer to come down the ladder before doing this step. Disconnect the old battery and replace it with a new one. Once the new one is in place, climb back up the ladder and fix the alarm back into its bracket. While you’re up there, press the alarm’s test button to make sure it’s working.

Please make sure you use all equipment appropriately and safely when following the advice in these D.I.Y. videos. You need to be familiar with how to use equipment safely and follow the instructions which came with the equipment. If you are unsure, you may feel it is safest to consult an expert, such as the manufacturer or an expert Bunnings team member.

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