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Best Buy customers often prefer the following products when searching for battery for fire alarm.

Fire alarms are critical safety devices for your home, and possibly the most important. And while most home fire alarms last about 10 years, it's still a good idea to replace the battery every year or so. Here are some of the best batteries for keeping your smoke alarm at its best.

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  1. Rayovac High Energy D Batteries (4 Pack), Alkaline D Cell Batteries - Front_Zoom
    Top comment

    "Excellent Battery...I mostly just use this type of battery in my smoke alarms which I change them every 6 months....Works well for our smoke alarms and Carbon Monoxide detectors. Inexpensive and last a long time."

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    Product Description

    Provide power to household electronics with this Rayovac 813-4TF2 D batteries 4-pack. Reclosable packaging lets you take what you need and stow the rest neatly away.
    See all Alkaline Batteries
    Top comment

    "Excellent Battery...I mostly just use this type of battery in my smoke alarms which I change them every 6 months....Works well for our smoke alarms and Carbon Monoxide detectors. Inexpensive and last a long time."

    See all customer reviews

    Product Description

    Provide power to household electronics with this Rayovac 813-4TF2 D batteries 4-pack. Reclosable packaging lets you take what you need and stow the rest neatly away.
    See all Alkaline Batteries
    See all Alkaline Batteries
  2. UltraLast - 9V Batteries (12-Pack) - Front_Zoom

    Model: UL129VB
    SKU: 5894045
    Top comment

    "Bought these for our smoke alarms that are hardwired with battery backup. ...Use these batteries in my home smoke alarm and my remote garage door opener. "

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    Product Description

    Keep toys and gadgets running smoothly with these UltraLast 9V batteries. This pack includes 12 alkaline cells, so you can stock the supply room or gadget drawer.
    See all Alkaline Batteries
    Top comment

    "Bought these for our smoke alarms that are hardwired with battery backup. ...Use these batteries in my home smoke alarm and my remote garage door opener. "

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    Product Description

    Keep toys and gadgets running smoothly with these UltraLast 9V batteries. This pack includes 12 alkaline cells, so you can stock the supply room or gadget drawer.
    See all Alkaline Batteries
    See all Alkaline Batteries
  3. Best Buy essentials™ - C Batteries (4-Pack) - Alt_View_Zoom_11
    Top comment

    "Batteries...Maybe no one uses for smoke alarms anymore...I bought them because as I was prepping my CPR equipment, I discovered that the AED trainers needed C batteries. I have probably almost 100 of each A, AAA, even 9 volt and Lithium batteries for sure-fire lights. "

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    Product Description

    They’re just batteries – until your remote control is dead. The Best Buy essentials BE-BC4PK C Batteries (4-Pack) deliver consistent power to a wide variety of compatible toys and electronics. This pack contains 4 alkaline C batteries, ensuring you have enough to power your device. Safe and environmentally friendly, they are also mercury- and cadmium-free. They deliver a long-lasting and reliable charge with a 7,500 mAh capacity and 1.5 V of power, ensuring your toys, instruments, flashlights and other electronics are ready to go. Keep your favorite electronics powered with alkaline batteries backed by Best Buy.
    See all Alkaline Batteries
    Top comment

    "Batteries...Maybe no one uses for smoke alarms anymore...I bought them because as I was prepping my CPR equipment, I discovered that the AED trainers needed C batteries. I have probably almost 100 of each A, AAA, even 9 volt and Lithium batteries for sure-fire lights. "

    See all customer reviews

    Product Description

    They’re just batteries – until your remote control is dead. The Best Buy essentials BE-BC4PK C Batteries (4-Pack) deliver consistent power to a wide variety of compatible toys and electronics. This pack contains 4 alkaline C batteries, ensuring you have enough to power your device. Safe and environmentally friendly, they are also mercury- and cadmium-free. They deliver a long-lasting and reliable charge with a 7,500 mAh capacity and 1.5 V of power, ensuring your toys, instruments, flashlights and other electronics are ready to go. Keep your favorite electronics powered with alkaline batteries backed by Best Buy.
    See all Alkaline Batteries
    See all Alkaline Batteries
  4. Best Buy essentials™ - Assorted Batteries with Storage Box (33-Pack) - Alt_View_Zoom_11
    Top comment

    "Since most people use those in their smoke detectors it seems like others would like more too....But only one 9v battery (I needed 4 just for the fire alarms in my ceilings, and they are in everything from bathroom scales to mini-speakers; it would be useful to have a half-dozen on hand.)"

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    Product Description

    They’re just batteries—until your electronics need power. The Best Buy essentials BE-BMULTIPK Assorted Batteries with Storage Box (33-Pack) deliver consistent power to a wide variety of compatible toys and electronics. This alkaline battery kit contains AA batteries (12), AAA batteries (12), C batteries (4), D batteries (4) and a 9 V battery, providing you with more than enough backups for when you need them. Safe and environmentally friendly, they are also mercury and cadmium free. The batteries also come in an included storage box, keeping them neatly stored and organized. Be prepared for the next time you need power with alkaline batteries Backed by Best Buy.
    See all Alkaline Batteries
    Top comment

    "Since most people use those in their smoke detectors it seems like others would like more too....But only one 9v battery (I needed 4 just for the fire alarms in my ceilings, and they are in everything from bathroom scales to mini-speakers; it would be useful to have a half-dozen on hand.)"

    See all customer reviews

    Product Description

    They’re just batteries—until your electronics need power. The Best Buy essentials BE-BMULTIPK Assorted Batteries with Storage Box (33-Pack) deliver consistent power to a wide variety of compatible toys and electronics. This alkaline battery kit contains AA batteries (12), AAA batteries (12), C batteries (4), D batteries (4) and a 9 V battery, providing you with more than enough backups for when you need them. Safe and environmentally friendly, they are also mercury and cadmium free. The batteries also come in an included storage box, keeping them neatly stored and organized. Be prepared for the next time you need power with alkaline batteries Backed by Best Buy.
    See all Alkaline Batteries
    See all Alkaline Batteries
  5. Rayovac Fusion 9V Batteries (2 Pack), Alkaline 9 Volt Batteries - Front_Zoom

    Product Description

    Make the good times last with Rayovac Fusion 9 Volt Alkaline Batteries. The most powerful alkaline battery from the #1 value brand in the world, Rayovac Fusion delivers maximum performance to high drain devices. These advanced 9V alkaline batteries are engineered to provide optimal performance in a wide variety of devices. Use these Rayovac 9 volt batteries in the most power-hungry devices, from your wireless microphone to high-powered toys and smoke detector batteries. These 9 volt batteries hold power up to 5 years in storage. With all that energy inside, these high performance 9V batteries are ready to power the devices you use each day.
    See all Household Batteries

    Product Description

    Make the good times last with Rayovac Fusion 9 Volt Alkaline Batteries. The most powerful alkaline battery from the #1 value brand in the world, Rayovac Fusion delivers maximum performance to high drain devices. These advanced 9V alkaline batteries are engineered to provide optimal performance in a wide variety of devices. Use these Rayovac 9 volt batteries in the most power-hungry devices, from your wireless microphone to high-powered toys and smoke detector batteries. These 9 volt batteries hold power up to 5 years in storage. With all that energy inside, these high performance 9V batteries are ready to power the devices you use each day.
    See all Household Batteries
    See all Household Batteries
  6. Best Buy essentials™ - 9 V Batteries (4-Pack) - Front_Zoom
    Top comment

    "Just needed to replace a fire alarm. As long as it stops the beeping for low battery, its good!...Needed to replace fire alarm batteries..These did the trick. Easy Peasy."

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    Product Description

    They’re just batteries – until your electronics are powerless. The Best Buy essentials BE-B9V4PK 9 V Batteries (4-Pack) deliver consistent power to a wide variety of compatible toys and electronics. This pack contains 4 alkaline 9 V batteries, ensuring you always have backups when you need them. Safe and environmentally friendly, they are also mercury- and cadmium-free. They deliver a long-lasting and reliable charge with a 500 mAh capacity and 9 V of power, ensuring your remote controls, alarms and other electronics are ready to go. Be prepared for the next time you need power with alkaline batteries Backed by Best Buy.
    See all Alkaline Batteries
    Top comment

    "Just needed to replace a fire alarm. As long as it stops the beeping for low battery, its good!...Needed to replace fire alarm batteries..These did the trick. Easy Peasy."

    See all customer reviews

    Product Description

    They’re just batteries – until your electronics are powerless. The Best Buy essentials BE-B9V4PK 9 V Batteries (4-Pack) deliver consistent power to a wide variety of compatible toys and electronics. This pack contains 4 alkaline 9 V batteries, ensuring you always have backups when you need them. Safe and environmentally friendly, they are also mercury- and cadmium-free. They deliver a long-lasting and reliable charge with a 500 mAh capacity and 9 V of power, ensuring your remote controls, alarms and other electronics are ready to go. Be prepared for the next time you need power with alkaline batteries Backed by Best Buy.
    See all Alkaline Batteries
    See all Alkaline Batteries
  7. Energizer - MAX 9V Batteries (4 Pack), 9 Volt Alkaline Batteries - Front_Zoom
    Top comment

    "Batteries...Have them in my fire alarm serves long and seem to work well...I had to get these to put into my fire alarm at my apartment. It was beeping every 30 seconds, and the property manager deemed it not important enough to get it taken care of by maintenance SMH"

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    Product Description

    Energizer MAX 9V Alkaline Batteries are all about long lasting power for your everyday devices. Made to last, not to leak, these Energizer batteries fuel the technology that helps you live, work and play. Use these Energizer 9 volt batteries to power a variety of everyday gadgets and household items, whether you need smoke detector batteries, remote control car batteries, or 9V batteries for your child's favorite toys and games. With a shelf life of up to 5 years, these batteries are ready to keep your devices operating when you need them most. Depend on Energizer MAX 9 volt alkaline batteries to fuel your everyday electronics, whether you're at home, work or play.
    See all Alkaline Batteries
    Top comment

    "Batteries...Have them in my fire alarm serves long and seem to work well...I had to get these to put into my fire alarm at my apartment. It was beeping every 30 seconds, and the property manager deemed it not important enough to get it taken care of by maintenance SMH"

    See all customer reviews

    Product Description

    Energizer MAX 9V Alkaline Batteries are all about long lasting power for your everyday devices. Made to last, not to leak, these Energizer batteries fuel the technology that helps you live, work and play. Use these Energizer 9 volt batteries to power a variety of everyday gadgets and household items, whether you need smoke detector batteries, remote control car batteries, or 9V batteries for your child's favorite toys and games. With a shelf life of up to 5 years, these batteries are ready to keep your devices operating when you need them most. Depend on Energizer MAX 9 volt alkaline batteries to fuel your everyday electronics, whether you're at home, work or play.
    See all Alkaline Batteries
    See all Alkaline Batteries
  8. Energizer - MAX AAA Batteries (6 Pack), Triple A Alkaline Batteries - Front_Zoom
    Top comment

    "I really buy them because I trust Energizer batteries. When the batteries in my smoke alarms need changing; I trust Energizer to go the distance to keep my family safe. ...Fire alarm? Absolutely. Kids toys? Duh! They get the job done, every time! "

    See all customer reviews

    Product Description

    Power the devices you love with Energizer MAX AAA Alkaline Batteries. These Energizer batteries fuel the technology that helps you live, work and play, whether you need batteries for everyday electronics like your wireless mouse or toy batteries for your child's favorite toys. Energizer's #1 longest-lasting MAX, these triple A batteries keep your favorite devices running longer. Powerseal Technology helps protect your devices against damaging leaks for up to two years after these batteries are fully used. With a shelf life of up to 12 years in storage, these Energizer AAA batteries are ready to keep your devices operating when you need them most. Depend on the power of Energizer MAX AAA Batteries to power your everyday electronics.
    See all Alkaline Batteries
    Top comment

    "I really buy them because I trust Energizer batteries. When the batteries in my smoke alarms need changing; I trust Energizer to go the distance to keep my family safe. ...Fire alarm? Absolutely. Kids toys? Duh! They get the job done, every time! "

    See all customer reviews

    Product Description

    Power the devices you love with Energizer MAX AAA Alkaline Batteries. These Energizer batteries fuel the technology that helps you live, work and play, whether you need batteries for everyday electronics like your wireless mouse or toy batteries for your child's favorite toys. Energizer's #1 longest-lasting MAX, these triple A batteries keep your favorite devices running longer. Powerseal Technology helps protect your devices against damaging leaks for up to two years after these batteries are fully used. With a shelf life of up to 12 years in storage, these Energizer AAA batteries are ready to keep your devices operating when you need them most. Depend on the power of Energizer MAX AAA Batteries to power your everyday electronics.
    See all Alkaline Batteries
    See all Alkaline Batteries
  9. Best Buy essentials™ - AA Batteries (8-Pack) - Alt_View_Zoom_11
    Top comment

    "Batteries...Batteries they are good for clocks, remotes, toothbrush, shavers, fire alarms, flash lights...Good batteries at a fraction of the pice. Unless you need batteries for a smoke detector or something like that, get these."

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    Product Description

    They’re just batteries – until your remote control is dead. The Best Buy essentials BE-BAA8PK AA Batteries (8-Pack) deliver consistent power to a wide variety of compatible toys and electronics. This pack contains 8 alkaline AA batteries, ensuring you have enough to power your device. Safe and environmentally friendly, they are also mercury- and cadmium-free. They deliver a long-lasting and reliable charge with a 2,900 mAh capacity and 1.5 V of power, ensuring your toys, remote controls, cameras and other electronics are ready to go. Keep your favorite electronics powered with alkaline batteries backed by Best Buy.
    See all Alkaline Batteries
    Top comment

    "Batteries...Batteries they are good for clocks, remotes, toothbrush, shavers, fire alarms, flash lights...Good batteries at a fraction of the pice. Unless you need batteries for a smoke detector or something like that, get these."

    See all customer reviews

    Product Description

    They’re just batteries – until your remote control is dead. The Best Buy essentials BE-BAA8PK AA Batteries (8-Pack) deliver consistent power to a wide variety of compatible toys and electronics. This pack contains 8 alkaline AA batteries, ensuring you have enough to power your device. Safe and environmentally friendly, they are also mercury- and cadmium-free. They deliver a long-lasting and reliable charge with a 2,900 mAh capacity and 1.5 V of power, ensuring your toys, remote controls, cameras and other electronics are ready to go. Keep your favorite electronics powered with alkaline batteries backed by Best Buy.
    See all Alkaline Batteries
    See all Alkaline Batteries
  10. Energizer - Ultimate Lithium AAA Batteries (2 Pack), Triple A Batteries - Front_Zoom
    Top comment

    "best for smoke alarms...After coming home one March, our house was on the verge of freezing! Our batteries had run out . These batteries have never let us down....I have purchased these for all my remotes and fire alarms. Hope they last as long as advertised as my system has to be changed with a 10ft. ladder."

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    Product Description

    Experience lasting performance with Energizer Ultimate Lithium AAA Batteries. These household batteries are not only the #1 longest lasting AAA batteries in high-tech devices, but they also feature leak resistant construction and superior performance in extreme temperatures ranging from -40 degrees F to 140 degrees F. Use these AAA lithium batteries to power a variety of high tech and household items, whether you need batteries for flashlights, game controllers, digital cameras, or your child's favorite toys and games. Ultimate Lithium Energizer AAA batteries weigh one-third less than standard alkaline triple A batteries, making them a lightweight power source. Energizer Ultimate Lithium batteries also hold power for up to 25 years in storage, letting you keep a ready supply of backup batteries. To ensure your favorite devices operate at their peak performance, depend on Energizer Ultimate Lithium batteries for work, play and home.
    See all Lithium Batteries
    Top comment

    "best for smoke alarms...After coming home one March, our house was on the verge of freezing! Our batteries had run out . These batteries have never let us down....I have purchased these for all my remotes and fire alarms. Hope they last as long as advertised as my system has to be changed with a 10ft. ladder."

    See all customer reviews

    Product Description

    Experience lasting performance with Energizer Ultimate Lithium AAA Batteries. These household batteries are not only the #1 longest lasting AAA batteries in high-tech devices, but they also feature leak resistant construction and superior performance in extreme temperatures ranging from -40 degrees F to 140 degrees F. Use these AAA lithium batteries to power a variety of high tech and household items, whether you need batteries for flashlights, game controllers, digital cameras, or your child's favorite toys and games. Ultimate Lithium Energizer AAA batteries weigh one-third less than standard alkaline triple A batteries, making them a lightweight power source. Energizer Ultimate Lithium batteries also hold power for up to 25 years in storage, letting you keep a ready supply of backup batteries. To ensure your favorite devices operate at their peak performance, depend on Energizer Ultimate Lithium batteries for work, play and home.
    See all Lithium Batteries
    See all Lithium Batteries
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