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

Alarm batteries are the batteries that power home security systems. They're also used in smoke alarms, carbon monoxide detectors, and other alarms. Browse the top-ranked list of alarm batteries below along with associated reviews and opinions.

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  1. Panasonic - eneloop Rechargeable AA Batteries (12-Pack) - Front_Zoom
    Top comment

    "Great rechargeable batteries....We must have a hundred of these in our house in smoke detectors, professional photography equipment, smoke alarms, toys, etc. They work great....battery...They are good long lasting batteries for a good price."

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    Product Description

    Power your household electronics easily with these Panasonic eneloop BK-3MCCA12SA AA batteries, which come precharged for immediate use and can be recharged up to 2100 times for a long-lasting design. The batteries withstand the cold for versatility.
    See all Rechargeable Batteries
    Top comment

    "Great rechargeable batteries....We must have a hundred of these in our house in smoke detectors, professional photography equipment, smoke alarms, toys, etc. They work great....battery...They are good long lasting batteries for a good price."

    See all customer reviews

    Product Description

    Power your household electronics easily with these Panasonic eneloop BK-3MCCA12SA AA batteries, which come precharged for immediate use and can be recharged up to 2100 times for a long-lasting design. The batteries withstand the cold for versatility.
    See all Rechargeable Batteries
    See all Rechargeable Batteries
  2. Best Buy essentials™ - C Batteries (4-Pack) - Alt_View_Zoom_11
    Top comment

    "Battery...Batteries are batteries, what can I say except they work.....Batteries...Maybe no one uses for smoke alarms anymore"

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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

    "Battery...Batteries are batteries, what can I say except they work.....Batteries...Maybe no one uses for smoke alarms anymore"

    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
  3. Energizer - A23 Batteries (1 Pack), Miniature Alkaline Small Batteries - Front_Zoom
    Top comment

    "Alarm Batteries...Great place to buy batteries for an alarm system. Salesman knew exactly what I was looking for and where to find them....Needed to replace a battery in one of my door alarms. Theses batteries have always lasted a long time."

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    Product Description

    Energizer A23 Batteries provide reliable power to your important gadgets. These mini batteries are compatible with a variety of devices, including your keyless entry system, bluetooth headsets and home security systems. Reach for these specialty batteries when you need replacement camera batteries or a new garage door opener battery. Miniature alkaline Energizer batteries contain zero mercury to reduce environmental impact. Count on Energizer, the #1 brand of specialty batteries, to deliver dependable, long lasting power to your devices.
    See all Alkaline Batteries
    Top comment

    "Alarm Batteries...Great place to buy batteries for an alarm system. Salesman knew exactly what I was looking for and where to find them....Needed to replace a battery in one of my door alarms. Theses batteries have always lasted a long time."

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    Product Description

    Energizer A23 Batteries provide reliable power to your important gadgets. These mini batteries are compatible with a variety of devices, including your keyless entry system, bluetooth headsets and home security systems. Reach for these specialty batteries when you need replacement camera batteries or a new garage door opener battery. Miniature alkaline Energizer batteries contain zero mercury to reduce environmental impact. Count on Energizer, the #1 brand of specialty batteries, to deliver dependable, long lasting power to your devices.
    See all Alkaline Batteries
    See all Alkaline Batteries
  4. Energizer - 357/303 Batteries (1 Pack), Button Cell Batteries - Front_Zoom
    Top comment

    "I've had this battery in an old alarm clock for years and it's still ticking!...I mean, it's batteries...What else should a battery review say? Quality battery."

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    Product Description

    Energizer 357/303 Batteries provide reliable, long lasting power to your important devices. Count on these button cell batteries to power your electronics, whether you need batteries for your kitchen scale, calculator or your keyless entry system. These Energizer batteries also provide dependable power for medical devices, like your glucose monitor or heart rate monitor. Each 357/303 battery holds power for up to 5 years in storage, letting you keep a ready supply of replacement batteries. Plus, these batteries contain no mercury, making them a more environmentally conscious choice. Count on Energizer specialty batteries to provide long lasting power when you need it most.
    See all Specialty Batteries
    Top comment

    "I've had this battery in an old alarm clock for years and it's still ticking!...I mean, it's batteries...What else should a battery review say? Quality battery."

    See all customer reviews

    Product Description

    Energizer 357/303 Batteries provide reliable, long lasting power to your important devices. Count on these button cell batteries to power your electronics, whether you need batteries for your kitchen scale, calculator or your keyless entry system. These Energizer batteries also provide dependable power for medical devices, like your glucose monitor or heart rate monitor. Each 357/303 battery holds power for up to 5 years in storage, letting you keep a ready supply of replacement batteries. Plus, these batteries contain no mercury, making them a more environmentally conscious choice. Count on Energizer specialty batteries to provide long lasting power when you need it most.
    See all Specialty Batteries
    See all Specialty Batteries
  5. Energizer - 389 Silver Oxide Button Battery, 1 Pack - Front_Zoom
    Top comment

    "inexpensive alarm clock battery...inexpensive alarm clock battery. compatible with other generic brands....Bought a watch battery...The Walmarts, Targets, Home Depot & Lowe's do not carry these very small watch batteries any more probably do to them being easy thefts because 1) they are pricey; 2) there are none of those door alarms on them. "

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    Product Description

    There are regular specialty batteries, and then there are Energizer Specialty Batteries. So get the durable, reliable power that keeps going with this Energizer 389 Silver Oxide Button Cell Battery. It delivers long-lasting power to your button-battery-operated devices, from household electronics like keyless entry systems, to e-books, toys, calculators, and watches, to heart rate and glucose monitors. And these zero-mercury coin batteries can hold power for up to five years in storage. Choose Energizer Specialty Batteries for long-lasting power you can count on when you need it.
    See all Specialty Batteries
    Top comment

    "inexpensive alarm clock battery...inexpensive alarm clock battery. compatible with other generic brands....Bought a watch battery...The Walmarts, Targets, Home Depot & Lowe's do not carry these very small watch batteries any more probably do to them being easy thefts because 1) they are pricey; 2) there are none of those door alarms on them. "

    See all customer reviews

    Product Description

    There are regular specialty batteries, and then there are Energizer Specialty Batteries. So get the durable, reliable power that keeps going with this Energizer 389 Silver Oxide Button Cell Battery. It delivers long-lasting power to your button-battery-operated devices, from household electronics like keyless entry systems, to e-books, toys, calculators, and watches, to heart rate and glucose monitors. And these zero-mercury coin batteries can hold power for up to five years in storage. Choose Energizer Specialty Batteries for long-lasting power you can count on when you need it.
    See all Specialty Batteries
    See all Specialty Batteries
  6. Best Buy essentials™ - Assorted Batteries with Storage Box (33-Pack) - Alt_View_Zoom_11
    Top comment

    "Battery and Box...Great deal, loads of batteries and a great plastic box for storing your batteries...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

    "Battery and Box...Great deal, loads of batteries and a great plastic box for storing your batteries...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
  7. Energizer - 2450 Lithium Coin Battery, 2 Pack - Front_Zoom
    Top comment

    "Energize battery 2450....Purchase batteries for car alarm. Last longer than Duracell batteries,...Alarm...Great batteries use them in all my alarms accessories"

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    Product Description

    Don’t let their small size fool you: This Energizer 2450 Lithium Coin 3-Volt Battery delivers big time on long-lasting, dependable power for your coin-battery-operated items. From heart rate or glucose monitors, to remotes, keyless entry systems, key fobs, watches, toys and games, and even more specialized devices, our CR2450 coin batteries are compatible with the devices that fit your life, so you can keep going. These reliable and durable Energizer Coin Lithium Batteries are able to withstand a wide range of temperatures (from -22º to 140º F) and can hold power in storage for up to eight years, giving you coin battery power you can depend on. Responsibly designed with zero mercury, it’s easy to see why Energizer Lithium CR2450 Coin Batteries are the right choice for your specialty devices.
    See all Household Batteries
    Top comment

    "Energize battery 2450....Purchase batteries for car alarm. Last longer than Duracell batteries,...Alarm...Great batteries use them in all my alarms accessories"

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    Product Description

    Don’t let their small size fool you: This Energizer 2450 Lithium Coin 3-Volt Battery delivers big time on long-lasting, dependable power for your coin-battery-operated items. From heart rate or glucose monitors, to remotes, keyless entry systems, key fobs, watches, toys and games, and even more specialized devices, our CR2450 coin batteries are compatible with the devices that fit your life, so you can keep going. These reliable and durable Energizer Coin Lithium Batteries are able to withstand a wide range of temperatures (from -22º to 140º F) and can hold power in storage for up to eight years, giving you coin battery power you can depend on. Responsibly designed with zero mercury, it’s easy to see why Energizer Lithium CR2450 Coin Batteries are the right choice for your specialty devices.
    See all Household Batteries
    See all Household Batteries
  8. Best Buy essentials™ - 9 V Batteries (4-Pack) - Front_Zoom
    Top comment

    "Power for smoke alarms....Used to replace smoke alarm batteries. Work well and gives devices power. ...9V Batteries...excellent price to replace the batteries in my fire alarms."

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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

    "Power for smoke alarms....Used to replace smoke alarm batteries. Work well and gives devices power. ...9V Batteries...excellent price to replace the batteries in my fire alarms."

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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
    See all Alkaline Batteries
  9. Energizer - MAX AAA Batteries (6 Pack), Triple A Alkaline Batteries - Front_Zoom
    Top comment

    "battery...these batteries do what batteries do. energizer is a good brand....BATTERY ENERGIZER AAA24 L...BATTERY ENERGIZER AAA24 LONGEST LASTING batteries I LIKE IT"

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    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

    "battery...these batteries do what batteries do. energizer is a good brand....BATTERY ENERGIZER AAA24 L...BATTERY ENERGIZER AAA24 LONGEST LASTING batteries I LIKE IT"

    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
  10. 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...Battery review...good batteries work well no problems with these batteries"

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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...Battery review...good batteries work well no problems with these batteries"

    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
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