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Comparing Battery-Powered and Hardwired Smoke Detectors

Comparing Battery-Powered and Hardwired Smoke Detectors

Here is how battery-powered and hardwired smoke detectors match up.

A gadget that helps establish peace in a home is a smoke detector. Smoke detectors are vital for warning people of impending fires whenever they arise. It’s strongly advised that you have a smoke detector installed just outside of every bedroom in your house, no more than 10 feet from your bedroom door.

There are two types of smoke detectors that we want to review today: hardwired varieties and battery-operated options. Here is how battery-powered and hardwired smoke detectors match up.

Maintenance & Installation

Battery-powered smoke detectors are able to be installed more easily. They need only a few minutes to get them set up. When their batteries run dry, all you’ll have to do is get those batteries replaced, and you’ll have a fully functional detector again. The one burden is that you’ll have to get the batteries replaced fairly frequently because they are the sole power source.

Hardwired detectors can be a bit trickier to install. You have to get them connected to the power supply for your house. Maintenance can also be taxing because you have to shut down your home’s power, and it will often be necessary to get the help of a professional electrician to get everything installed. What’s great about hardwired detectors is that you can get them interconnected with each other. This means that all of them will activate at once the moment, even one of your smoke detectors sounds off. This will alert everyone in your home of a fire, even if it’s in a faraway room.


Battery-powered smoke detectors depend on battery life to operate. Additionally, their alarms won’t be as strong as the batteries drain. Their lifespan is as long as the batteries’ lifespans.

Hardwired detectors, in contrast, will last for an indefinite period of time because they get linked to your power supply. They also usually have battery backups that ensure they keep working even if there is a power outage.


Battery-powered detectors will work independently of other detectors in your house. This means only the detectors closest to a fire will activate.

Hardwired detectors are interconnected. When one sounds off, all of the other detectors in the house will also trigger, alerting everyone of a fire in the vicinity.


Anderson Fire Protection, Inc. has the expertise and skill to help your home or commercial property for all your fire protection needs. We have been working in the Maryland, Northern Virginia, Southern Pennsylvania, and Washington, D.C. areas for over 25 years. We are known for our top-notch customer service and high-quality results. If you are ready for fantastic fire prevention and protection services, from fire sprinkler installation to fire alarm design and to consult, give us a call at (410) 796-4915 or visit us online.

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