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Smallest Batteries

Batteries are the lifeblood of portable electronic devices. Without them, our devices would be useless hunks of plastic and metal. If you need to replace the batteries on your device and they require some of the smallest batteries available in the consumer market, maybe we can help. Browse the top-ranked list of some of the smallest batteries below along with associated reviews and opinions.

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  1. Energizer - 357/303 Batteries (1 Pack), Button Cell Batteries

    SKU: J78676G7LQ

    I love Best Buy!...I bought the wrong battery but you know what I kept it anyways because it’s Best Buy and I love Best...Great battery selection...I’m glad Best Buy had them in stock!

    Product Description

    A silver button cell battery delivering reliable, long-lasting 1.55V power for electronics and medical devices.
    See all Specialty Batteries
    Your price for this item is $4.59

  2. Energizer - AAAA Batteries (2 Pack), Miniature Quadruple A Batteries

    SKU: J78676JV34

    Great price...I love energizer and best buy always has s great price too!...Great Buy...Love Best Buy great knowledgeable staff friendly service and we got a deal the product is unparalleled

    Product Description

    A dependable pair of silver alkaline AAAA batteries delivering long-lasting 1.5V power for small electronics.
    See all Alkaline Batteries
    Your price for this item is $5.49
    Save $2
    The previous price was $7.49

  3. Energizer - 2450 Lithium Coin Battery, 2 Pack

    SKU: J78676LK5V

    Great Item! I love using this product. It is the best!...Great!...Needed these batteries and Best Buy sold them for a great value.

    Product Description

    A reliable 3-volt silver lithium coin battery pack delivering long-lasting power for various electronic devices.
    See all Household Batteries
    Your price for this item is $4.99
    Save $5
    The previous price was $9.99

  4. Energizer - 2016 Batteries (2 Pack), 3V Lithium Coin Batteries

    SKU: J78676CC6W

    i love best buy i always like to shop in bestbuy 143...The best price on these batteries great price great value

    Product Description

    A reliable pair of silver 3V lithium coin batteries offering long-lasting power for key fobs and devices.
    See all Lithium Batteries
    Your price for this item is $7.19

  5. Energizer - 1616 Lithium Coin Battery, 1 Pack

    SKU: J78676CSWS

    Great battery. Love how Best Buy carries batteries for everything they sell....Great...Great product and great quality. Best Buy has the best selection you need

    Product Description

    A reliable silver lithium coin battery delivering long-lasting 3-volt power for various specialty devices.
    See all Lithium Batteries
    Your price for this item is $5.49

  6. Energizer - 377 Batteries (2 Pack), Silver Oxide Button Cell Batteries

    SKU: J78676G7P9

    I love watches and they always need batteries. Best Buy has a great assortment....Best Buy is where I purchase my batteries...Best Buy is a great and convenient place to purchase batteries

    Product Description

    A pack of two silver oxide button cell batteries delivering reliable 1.55V power for small devices.
    See all Specialty Batteries
    Your price for this item is $7.99

  7. VEVOR - Button Cell Battery, 4 Pack (40 Count) LR44 Alkaline Batteries Non-Mercury

    SKU: JJGHKZKLCP

    Great value, especially for bulk needs. Too new to comment on longevity.

    Product Description

    A pack of silver, non-mercury LR44 alkaline batteries with leak-proof sealing and 5-year shelf life.
    See all Alkaline Batteries
    Your price for this item is $8.99
    Save $6
    The previous price was $14.99

  8. Energizer - 2025 Batteries (2 Pack), 3V Lithium Coin Batteries

    SKU: J78676CC6S

    Works great!...Best Buy always has what I need. Just gotta love that place!...Great purchase....I love the curbside pickup that Best Buy is providing. It's so convenient.

    Product Description

    A reliable pair of silver 3V lithium coin batteries offering long-lasting power and child-resistant packaging.
    See all Lithium Batteries
    Your price for this item is $7.19

  9. Energizer - 392 Silver Oxide Button Battery, 1 Pack

    SKU: J78676GCY3

    Great price...These work great for me. Best Buy has a great selection of watch batteries....Great selection at Best Buy for coin lithium batteries.

    Product Description

    A silver oxide button battery providing reliable, long-lasting 1.5V power for various small electronic devices.
    See all Specialty Batteries
    Your price for this item is $5.79

  10. INIU - Portable Charger, Market's Smallest 10000mAh PD 45W Power Bank with Layout USB-C Cable for iPhone, Samsung, Pixel etc - Black

    SKU: CZW8VCWVTF

    Great portable charger...One of the best portable chargers I’ve purchased!!...the best...my best power bank ever! fast recharge! small and light weith

    Product Description

    A compact black 10,000mAh power bank with 45W PD and built-in USB-C cable for fast charging.
    See all Portable Chargers & Power Banks
    Your price for this item is $29.69
    Save $3
    The previous price was $32.99
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FAQ

The smallest batteries are often used in devices such as hearing aids, wristwatches, key fobs, medical devices, calculators, and small electronic toys.

Yes, small batteries come in various types including button cell, coin cell, and cylindrical formats, with chemistries such as alkaline, silver oxide, and lithium to suit different device requirements.

You can identify the correct battery by checking your device’s manual or the battery compartment for the specific battery code or model number, which is usually printed on the old battery as well.

Store unused small batteries in a cool, dry place and keep them in their original packaging or a battery organizer to prevent contact with other metals and reduce the risk of discharge.

Yes, many small batteries can be recycled. Check with your local recycling center or retail stores that offer battery recycling programs to ensure proper disposal and help protect the environment.