How To Change Battery in First Alert Smoke Detector

Changing the battery in your smoke detector is an important task that should be done regularly to ensure that your detector is always working properly. If you have a First Alert smoke detector, you may be wondering how to change the battery. Smoke detectors are essential in keeping your home safe, but they only work if they have a fresh battery.

Changing the battery is a quick and easy process, and it only takes a few minutes. Keep in mind that you should always test your smoke detector after changing the battery to make sure that it is working properly. Keep your family safe by following these simple steps to change the battery in your First Alert smoke detector and testing it afterward.

How do you remove the battery from a first alert smoke and carbon monoxide alarm?

First Alert Smoke and Carbon Monoxide Alarm is the ideal product to protect your home and family from the dangers of smoke and carbon monoxide poisoning. The alarm uses an electrochemical sensor to detect both types of hazards. The alarm has a voice warning system that alerts you when there is danger present and also offers a silence button to stop the beeping sound.

Although your smoke detector and carbon monoxide alarm are designed to provide you with years of service, the batteries need to be replaced every once a year to ensure optimal performance. The good news is that changing the batteries in your smoke detector and carbon monoxide alarm is a quick and easy process.

To remove the battery from your First Alert smoke and carbon monoxide alarm:

1. Locate the battery compartment on the side of the alarm.

2. Carefully pull the battery compartment out of the alarm.

3. Gently press down on the tab located on top of the battery and pull it out of its slot.

4. Remove the old battery and replace it with a new one.

5. Test your smoke and carbon monoxide alarm to ensure that it is working properly.

How do I stop my first alert smoke detector from beeping?

Smoke detectors are essential in every home, so it is important to know how to change the batteries and silence the alarm if necessary. With a few simple steps, you can easily keep your family safe from harm. If your First Alert smoke detector is beeping, it may be because the batteries are low and need to be replaced. But if your smoke detector is still beeping after you have replaced the batteries, then there are things you can do to stop the beeping.

These are the steps to silence your smoke detector:

1. Take your first alert smoke detector in your ceiling.

2. Remove its cover and take off the battery from the compartment.

3. Press and hold on to the test button for at least 15 to 30 seconds.

4. Close the battery compartment after inserting the new battery.

5. Make use of microfiber cloth or any other soft material to clean off the unit. Then vacuum the smoke detector, making sure that the area around it is also clean.

6. To begin, press the test button. The test sequence will be rather loud, but it will confirm that the alarm is functioning properly.

What kind of batteries does a first alert smoke detector take?

When it comes to your family’s safety, you want to make sure that your smoke detector is working properly at all times. One way to do this is to change the batteries regularly. But knowing what type and kind of battery to use can be confusing. You should always use new batteries for optimal performance and never use rechargeable batteries as they may not work properly in the event of a fire. It is also important to remember to never mix old and new batteries as this can cause damage to your smoke detector.

When changing the batteries in your First Alert smoke detector, you can use a 9V or AA battery. 9V has been the standard battery type for smoke detectors, but with the increase of smart home technology and devices, AA batteries are becoming more popular as they provide around three times the energy of 9V batteries. Both types of batteries will work in your smoke detector, and it is just a matter of personal preference. These can both be found at your local grocery, hardware store, supermarket, or online shops.

How do you change the battery in a hard-wired smoke detector?

While most smoke detectors run on batteries, there are also hardwired smoke detectors that are connected to your home’s electrical system. These types of smoke detectors are usually found in new homes as they are required by law in some states. Hardwired smoke detectors have a backup battery in case of a power outage, so you will still be protected even if the power goes out.

To change the battery in a hardwired smoke detector:

1. Turn off the power to the circuit breaker that the smoke detector is wired to.

2. Open the cover of the smoke detector and remove the old battery.

3. Replace the old battery with a new one and close the cover.

4. Turn on the power to the circuit breaker that the smoke detector is wired to.

5. Press and hold down the test button for at least 15 seconds.

6. Your hardwired smoke detector is now working properly, and you can rest assured knowing that your family is safe.


Battery replacement is a common task that you have to do as a homeowner. It is important to know about replacing battery on first alert smoke detector for safety reasons and to keep your family safe. All in all, replacing the battery in a First Alert smoke detector is a fairly simple process that you can do. The most important thing to remember is to always use fresh batteries and to test your alarm regularly to ensure that it is working properly.

Smoke detectors are an important part of any home safety plan, so don’t wait until you have a problem with your alarm to address it. A working smoke detector could save your life and the lives of your loved ones. Keep in mind these tips when changing the battery in your smoke detector, and you will be safe and sound.

About the author, Phil Borges

Phil Borges is a battery aficionado. He's written extensively about batteries, and he loves nothing more than discussing the latest innovations in the industry. He has a deep understanding of how batteries work, and he's always on the lookout for new ways to improve their performance.