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

Powering your key fob, toy, headset or other electronic device may require small batteries. If you're looking for ones that are durable and have a great shelf life, we've got you covered. Browse the top-ranked list of small batteries below along with associated reviews and opinions.

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  1. Energizer - 2450 Lithium Coin Battery, 1 Pack - Front_Zoom
    Top comment

    "Great Battery...Great battery. Has a nice duration/run time for a small battery....Reliable Battery...These are my go to batteries when in need for button 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 Lithium Batteries
    Top comment

    "Great Battery...Great battery. Has a nice duration/run time for a small battery....Reliable Battery...These are my go to batteries when in need for button batteries"

    See all customer reviews

    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 Lithium Batteries
    See all Lithium Batteries
  2. Energizer - 1632 Lithium Coin Battery, 1 Pack - Front_Zoom
    Top comment

    "Batteries are a great invention...Batteries store energy for use at a later time. This one is surprisingly small and only fits specific devices....Small flat battery needed for an old point and shoot camera. "

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    Product Description

    Don’t let their small size fool you: This Energizer 1632 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 Lithium Batteries
    Top comment

    "Batteries are a great invention...Batteries store energy for use at a later time. This one is surprisingly small and only fits specific devices....Small flat battery needed for an old point and shoot camera. "

    See all customer reviews

    Product Description

    Don’t let their small size fool you: This Energizer 1632 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 Lithium Batteries
    See all Lithium Batteries
  3. Energizer - 377 Batteries (2 Pack), Silver Oxide Button Cell Batteries - Front_Zoom
    Top comment

    "Typical battery...They are tiny, 1.55V. Best Buy doesn't have a big selection of batteries. ...Tiny Button Batteries...hard to find these small button batteries at a reasonable price"

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    Product Description

    Energizer 377 Batteries provide reliable, long lasting power for your important devices. Small in size, but big on power, trust these button batteries when you need key fob batteries or calculator batteries. Keep your keyless entry system or health monitor powered with these small batteries, or use them to keep your child's favorite toys and games ready for fun. For best results, store these 1.5V button cell batteries in a cool, dry place until you're ready to use them. Each 377 battery lasts up to five years in storage, so you can keep a stock conveniently on hand and ready when you need it. Choose Energizer batteries to deliver long lasting power that you can rely on.
    See all Specialty Batteries
    Top comment

    "Typical battery...They are tiny, 1.55V. Best Buy doesn't have a big selection of batteries. ...Tiny Button Batteries...hard to find these small button batteries at a reasonable price"

    See all customer reviews

    Product Description

    Energizer 377 Batteries provide reliable, long lasting power for your important devices. Small in size, but big on power, trust these button batteries when you need key fob batteries or calculator batteries. Keep your keyless entry system or health monitor powered with these small batteries, or use them to keep your child's favorite toys and games ready for fun. For best results, store these 1.5V button cell batteries in a cool, dry place until you're ready to use them. Each 377 battery lasts up to five years in storage, so you can keep a stock conveniently on hand and ready when you need it. Choose Energizer batteries to deliver long lasting power that you can rely on.
    See all Specialty Batteries
    See all Specialty Batteries
  4. Energizer - AAAA Batteries (2 Pack), Miniature Quadruple A Batteries - Front_Zoom
    Top comment

    "Batteries...Good, small batteries. Work as great as you could want a small battery to ever work....tiny batteries...Having recently purchased a Surface Pro with pen, I realized that I needed these little guys...who knew they came so small?? Performs as advertised"

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    Product Description

    Energizer AAAA Batteries provide dependable power to your important electronics. These mini batteries make long-lasting flashlight batteries, and they're compatible with a variety of devices, including wireless mice and TV remotes. Trust these AAAA alkaline batteries to reliably power your key fob and Connected Home security system. Miniature alkaline quadruple A 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

    "Batteries...Good, small batteries. Work as great as you could want a small battery to ever work....tiny batteries...Having recently purchased a Surface Pro with pen, I realized that I needed these little guys...who knew they came so small?? Performs as advertised"

    See all customer reviews

    Product Description

    Energizer AAAA Batteries provide dependable power to your important electronics. These mini batteries make long-lasting flashlight batteries, and they're compatible with a variety of devices, including wireless mice and TV remotes. Trust these AAAA alkaline batteries to reliably power your key fob and Connected Home security system. Miniature alkaline quadruple A 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
  5. Energizer - A23 Batteries (1 Pack), Miniature Alkaline Small Batteries - Front_Zoom
    Top comment

    "Had no idea Energizer made small batteries until I purchased a set of customizable led lights and had to purchase this battery. ...The Energizer A23 Batteries are small but mighty! Long-lasting power for various devices, reliable performance, and compact size make them essential. "

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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

    "Had no idea Energizer made small batteries until I purchased a set of customizable led lights and had to purchase this battery. ...The Energizer A23 Batteries are small but mighty! Long-lasting power for various devices, reliable performance, and compact size make them essential. "

    See all customer reviews

    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
  6. Canon - Rechargeable Lithium-Ion Battery for LP-E17 - Front_Zoom
    Top comment

    "The LP-E17 is a tiny battery. If you're using the EVF and LCD a lot while shooting, you'll need at least one extra battery. ...Charges canon battery likes it’s supoosed to, not much to it. Nice compact design where plug folds into the unit for storage and won’t be sticking out all the time. "

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    Product Description

    Keep your compatible Canon camera ready for use with this Canon LP-E17 9967B002 replacement battery, which features lithium-ion chemistry for reliable power.
    See all Camera Batteries
    Top comment

    "The LP-E17 is a tiny battery. If you're using the EVF and LCD a lot while shooting, you'll need at least one extra battery. ...Charges canon battery likes it’s supoosed to, not much to it. Nice compact design where plug folds into the unit for storage and won’t be sticking out all the time. "

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    Product Description

    Keep your compatible Canon camera ready for use with this Canon LP-E17 9967B002 replacement battery, which features lithium-ion chemistry for reliable power.
    See all Camera Batteries
    See all Camera Batteries
  7. Energizer - MAX AAA Batteries (10 Pack), Triple A Alkaline Batteries - Front_Zoom
    Top comment

    "Small, compact, and very convenient for traveling!...When don't batteries come in handy....Game controllers, camera, remote control, mini flashlights. Always good to have batteries."

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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

    "Small, compact, and very convenient for traveling!...When don't batteries come in handy....Game controllers, camera, remote control, mini flashlights. Always good to have batteries."

    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
  8. Energizer - 2032 Batteries (2 Pack), 3V Lithium Coin Batteries - Front_Zoom
    Top comment

    "I have to review this tiny battery?...I love this tiny battery. It works in my car key. :-)...Small round battery...Perfect for my small toys the take small Round batteries"

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    Product Description

    Energizer 2032 Lithium Coin Batteries provide reliable, long lasting power for your important devices. These lithium 2032 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, batteries for remotes, or glucose monitors and heart monitors. 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 whenever you need them. Energizer packages its lithium coin batteries in child-resistant packaging, designed to help keep kids safe from ingesting them.
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    Top comment

    "I have to review this tiny battery?...I love this tiny battery. It works in my car key. :-)...Small round battery...Perfect for my small toys the take small Round batteries"

    See all customer reviews

    Product Description

    Energizer 2032 Lithium Coin Batteries provide reliable, long lasting power for your important devices. These lithium 2032 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, batteries for remotes, or glucose monitors and heart monitors. 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 whenever you need them. Energizer packages its lithium coin batteries in child-resistant packaging, designed to help keep kids safe from ingesting them.
    See all Lithium Batteries
    See all Lithium Batteries
  9. APC - Back-UPS Pro 1050VA Tower UPS - Black - Front_Zoom
    Top comment

    "Powerful Backup Battery...This backup battery is compact, sleek and powerful. Its multiple ports make it perfect for office use with multiple devices plugged into it....Good for a Small Business!...Good Battery Back-up! It's great for a Small Business."

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    Product Description

    High Performance Computer and Electronics UPS for Premium Power Protection
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    Top comment

    "Powerful Backup Battery...This backup battery is compact, sleek and powerful. Its multiple ports make it perfect for office use with multiple devices plugged into it....Good for a Small Business!...Good Battery Back-up! It's great for a Small Business."

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    Product Description

    High Performance Computer and Electronics UPS for Premium Power Protection
    See all Battery Backup (UPS)
    See all Battery Backup (UPS)
  10. Energizer - A23 Batteries (2 Pack), Miniature Alkaline Small Batteries - Front_Zoom
    Top comment

    "Pretty batteries...Work great, nice color for such tiny cute batteries....Hey...They're batteries. What more can I say. Oh...there's a plus side and a minus side. "

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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 Specialty Batteries
    Top comment

    "Pretty batteries...Work great, nice color for such tiny cute batteries....Hey...They're batteries. What more can I say. Oh...there's a plus side and a minus side. "

    See all customer reviews

    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 Specialty Batteries
    See all Specialty Batteries
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