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

If you have a security system, it's important to keep the batteries in your alarm system fresh. Alarm systems use different types of batteries, including 9-volt, AA, C and coin cell batteries. The type of battery your alarm uses depends on the brand of system you have.

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  1. Panasonic - CR123 Batteries (6-Pack) - Front_Zoom

    Model: CR123PA/6B
    SKU: 9725125
    Top comment

    "Batteries...Serves its purpose... used for security alarm system...Great Panasonic batteries...Great batteries used for alarm system. Fast shipping and excellent service."

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    Product Description

    Keep your electronics running with these Panasonic CR123PA/6B CR123 batteries, which feature 3V of power with a 1400 mAh capacity to provide a sustained charge. With 6 batteries included, you'll have plenty of power for your devices.
    See all Lithium Batteries
    Top comment

    "Batteries...Serves its purpose... used for security alarm system...Great Panasonic batteries...Great batteries used for alarm system. Fast shipping and excellent service."

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    Product Description

    Keep your electronics running with these Panasonic CR123PA/6B CR123 batteries, which feature 3V of power with a 1400 mAh capacity to provide a sustained charge. With 6 batteries included, you'll have plenty of power for your devices.
    See all Lithium Batteries
    See all Lithium Batteries
  2. Energizer A23 Batteries (1 Pack), Miniature Alkaline Small Batteries - Front_Zoom
    Top comment

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

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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

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

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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
  3. Energizer 2450 Lithium Coin Battery, 2 Pack - Front_Zoom
    Top comment

    "Replacement for alarm sensors and works perfectly....Energize battery 2450....Purchase batteries for car alarm. Last longer than Duracell batteries,"

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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

    "Replacement for alarm sensors and works perfectly....Energize battery 2450....Purchase batteries for car alarm. Last longer than Duracell batteries,"

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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
  4. Energizer 357/303 Batteries (1 Pack), Button Cell Batteries - Front_Zoom
    Top comment

    "Energizer 357/303 silver Oxide Battery, great value! Long lasting battery life. Packaging was easy to open. ...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

    "Energizer 357/303 silver Oxide Battery, great value! Long lasting battery life. Packaging was easy to open. ...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. Best Buy essentials™ - CR123 Batteries (6-Pack) - Alt_View_Zoom_11
    Top comment

    "Batteries...Works like it suppose to in our smoke alarm. Once we put in the battery the alarms ceased....Best value of price and quality for this unique battery. Great for alarm sensors."

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    Product Description

    They’re just batteries – until your keyless entry is dead. The Best Buy essentials BE-B1236PK CR123 Batteries (6-Pack) deliver consistent power to a wide variety of compatible toys and electronics. This pack contains 6 lithium CR123 batteries, providing you with enough backups for when you need them. They deliver a reliable charge with a 1,400 mAh capacity and 3 V of power, ensuring your keyless entries, glucometers, games and other compatible electronics are ready to go. Be prepared for the next time you need power with batteries Backed by Best Buy.
    See all Alkaline Batteries
    Top comment

    "Batteries...Works like it suppose to in our smoke alarm. Once we put in the battery the alarms ceased....Best value of price and quality for this unique battery. Great for alarm sensors."

    See all customer reviews

    Product Description

    They’re just batteries – until your keyless entry is dead. The Best Buy essentials BE-B1236PK CR123 Batteries (6-Pack) deliver consistent power to a wide variety of compatible toys and electronics. This pack contains 6 lithium CR123 batteries, providing you with enough backups for when you need them. They deliver a reliable charge with a 1,400 mAh capacity and 3 V of power, ensuring your keyless entries, glucometers, games and other compatible electronics are ready to go. Be prepared for the next time you need power with batteries Backed by Best Buy.
    See all Alkaline Batteries
    See all Alkaline Batteries
  6. Energizer 2016 Batteries (2 Pack), 3V Lithium Coin Batteries - Front_Zoom
    Top comment

    "nice battery life...I bought this for my car remote and it has good battery life....Good batteries....Good batteries for car alarms remotes last a long time base on alarm use."

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    Product Description

    Energizer 2016 Lithium Coin Batteries provide reliable, long lasting power for your important devices. These lithium 2016 batteries perform in extreme temperatures ranging from -22 F to 140 F for dependable power, even in the toughest conditions. Reach for these Energizer batteries when you need key fob batteries, or batteries for remotes, glucose monitors and calculators. Energizer coin batteries are also an ideal power source for your keyless entry system, toys and games. Lasting up to 10 years in storage, these lithium batteries provide reliable power when you need them. Energizer packages its lithium coin batteries in child-resistant packaging, designed to help keep kids safe from ingesting them.
    See all Specialty Batteries
    Top comment

    "nice battery life...I bought this for my car remote and it has good battery life....Good batteries....Good batteries for car alarms remotes last a long time base on alarm use."

    See all customer reviews

    Product Description

    Energizer 2016 Lithium Coin Batteries provide reliable, long lasting power for your important devices. These lithium 2016 batteries perform in extreme temperatures ranging from -22 F to 140 F for dependable power, even in the toughest conditions. Reach for these Energizer batteries when you need key fob batteries, or batteries for remotes, glucose monitors and calculators. Energizer coin batteries are also an ideal power source for your keyless entry system, toys and games. Lasting up to 10 years in storage, these lithium batteries provide reliable power when you need them. Energizer packages its lithium coin batteries in child-resistant packaging, designed to help keep kids safe from ingesting them.
    See all Specialty Batteries
    See all Specialty Batteries
  7. 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....I've found the eneloops to be great by not discharging when just sitting around not in any device and they give great battery life when they are being used."

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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....I've found the eneloops to be great by not discharging when just sitting around not in any device and they give great battery life when they are being used."

    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
  8. Energizer 123 Lithium Batteries (4 Pack), 3V Photo Batteries - Front_Zoom
    Top comment

    "Energizer is a trusted and proven brand.. needed for alarm sensor...Used for alarm...These batteries were used as replacement batteries for a smoke alarm."

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    Product Description

    Energizer 123 Lithium Photo Batteries deliver reliable performance for your high tech devices. Place these powerful batteries in your cameras, and capture that perfect photo or video without worrying about your batteries running low. Lithium 123 batteries are also a long lasting, dependable choice when you need flashlight batteries or replacement batteries for your smart home devices. Energizer 123 lithium batteries last up to 10 years in storage, letting you keep a ready supply available when you need them. Count on Energizer lithium batteries to ensure your high tech devices stay powered and ready to capture precious memories.
    See all Camera Batteries & Power
    Top comment

    "Energizer is a trusted and proven brand.. needed for alarm sensor...Used for alarm...These batteries were used as replacement batteries for a smoke alarm."

    See all customer reviews

    Product Description

    Energizer 123 Lithium Photo Batteries deliver reliable performance for your high tech devices. Place these powerful batteries in your cameras, and capture that perfect photo or video without worrying about your batteries running low. Lithium 123 batteries are also a long lasting, dependable choice when you need flashlight batteries or replacement batteries for your smart home devices. Energizer 123 lithium batteries last up to 10 years in storage, letting you keep a ready supply available when you need them. Count on Energizer lithium batteries to ensure your high tech devices stay powered and ready to capture precious memories.
    See all Camera Batteries & Power
    See all Camera Batteries & Power
  9. Best Buy essentials™ - CR2032 Batteries (6-Pack) - Front_Zoom

    Product Description

    They’re just batteries – until your favorite watch is dead. The Best Buy essentials BE-B20326PK CR2032 Batteries (6-Pack) deliver consistent power to a wide variety of small devices and electronics. This pack contains 6 lithium CR2032 batteries, providing you with enough backups for when you need them. They deliver a reliable charge with a 220 mAh capacity and 3 V of power, ensuring your watch, wireless doorbells, remote controls and other compatible electronics are ready to go. Be prepared for the next time you need power with batteries Backed by Best Buy.
    See all Alkaline Batteries

    Product Description

    They’re just batteries – until your favorite watch is dead. The Best Buy essentials BE-B20326PK CR2032 Batteries (6-Pack) deliver consistent power to a wide variety of small devices and electronics. This pack contains 6 lithium CR2032 batteries, providing you with enough backups for when you need them. They deliver a reliable charge with a 220 mAh capacity and 3 V of power, ensuring your watch, wireless doorbells, remote controls and other compatible electronics are ready to go. Be prepared for the next time you need power with batteries Backed by Best Buy.
    See all Alkaline Batteries
    See all Alkaline Batteries
  10. Energizer 1620 Lithium Coin Battery, 1 Pack - Front_Zoom
    Top comment

    "Needed this battery for my home alarm system. The last one lasted forever so good deal....Not too much to say, but as always Energizer batteries are reliable and have a good battery life"

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    Product Description

    Don’t let their small size fool you: This Energizer 1620 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 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 Coin Batteries are the right choice for your specialty devices.
    See all Specialty Batteries
    Top comment

    "Needed this battery for my home alarm system. The last one lasted forever so good deal....Not too much to say, but as always Energizer batteries are reliable and have a good battery life"

    See all customer reviews

    Product Description

    Don’t let their small size fool you: This Energizer 1620 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 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 Coin Batteries are the right choice for your specialty devices.
    See all Specialty Batteries
    See all Specialty Batteries
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