• 3-Pack Varta V450HR NiMH Button Cell Batteries

    3-Pack Varta V450HR NiMH Button Cell Batteries

    Batteries Batteries/Size Batteries/Chemistry Batteries/Brand Batteries/Voltage Batteries/Chemistry/NiMH Batteries/Chemistry/Shop All Chemistries Batteries/Size/Shop All Sizes Batteries/Brand/Shop All Brands Batteries/Voltage/Shop All Voltage Batteries/Type/Button Batteries Batteries/Type Batteries/Type/Shop All Types Batteries/Brand/Varta Batteries/Voltage/1.2 Volt
    $21.99
    As low as:
  • 3-Pack Xeno XL-060F 3.6V AA 2.4Ah Lithium Batteries with Axial Leads

    3-Pack Xeno XL-060F 3.6V AA 2.4Ah Lithium Batteries with Axial Leads

    Batteries Batteries/Size Batteries/Chemistry Batteries/Brand Batteries/Voltage Batteries/Chemistry/Lithium Batteries/Chemistry/Shop All Chemistries Batteries/Size/AA Batteries/Size/Shop All Sizes Batteries/Brand/Shop All Brands Batteries/Voltage/Shop All Voltage Batteries/Type Batteries/Type/Shop All Types Batteries/Brand/Xeno Batteries/Voltage/3.6 Volt Lithium Thionyl Chloride/Xeno
    $21.99
    As low as:
  • 3.2V 600 mAh LiFePO4 battery pack for Gama Sonic solar lamps

    3.2V 600 mAh (14500) LiFeP04 Battery Pack for Gama Sonic Solar Lights

    Batteries Batteries/Size Batteries/Chemistry Batteries/Brand Batteries/Voltage Batteries/Chemistry/Shop All Chemistries Batteries/Size/Shop All Sizes Batteries/Brand/Shop All Brands Batteries/Voltage/3.2 Volt Batteries/Voltage/Shop All Voltage Batteries/Type Batteries/Type/Shop All Types Batteries/Type/Solar Light Batteries Batteries/Size/14500 Batteries/Chemistry/LiFePO4 Solar Light Batteries/Gama Sonic Solar Batteries Solar Light Batteries
    $21.99
    As low as:
    Buy in bulk and save
  • 3.6 Volt NiCd Battery Stick (1800 mAh) for Flashlights (Streamlight Stinger HP, XT, PolyStinger)

    3.6 Volt NiCd Battery Stick (1800 mAh) for Flashlights (Streamlight Stinger HP, XT, PolyStinger)

    Batteries Batteries/Size Batteries/Chemistry Batteries/Brand Batteries/Voltage Batteries/Chemistry/Shop All Chemistries Batteries/Size/Shop All Sizes Batteries/Brand/Shop All Brands Batteries/Voltage/Shop All Voltage Batteries/Type Batteries/Type/Shop All Types Batteries/Type/Flashlight Batteries Batteries/Chemistry/NiCd Batteries/Voltage/3.6 Volt
    $21.99
    As low as:
    Buy in bulk and save
  • 3.7 Volt 18650 MJ1 Lithium Ion Battery (3500 mAh)

    3.7 Volt 18650 MJ1 Lithium Ion Battery (3500 mAh)

    Batteries/Voltage/3.7 Volt Batteries/Type/Rechargeable Batteries Batteries/Size Batteries/Chemistry Batteries/Brand Batteries/Voltage Batteries/Chemistry/Shop All Chemistries Batteries/Size/Shop All Sizes Batteries/Brand/Shop All Brands Batteries/Voltage/Shop All Voltage Batteries/Chemistry/Lithium Ion Batteries/Type/Assembly Batteries Batteries/Type Batteries/Type/Shop All Types Batteries/Size/18650 18650 / 21700 Batteries/18650 Batteries/18650 Batteries Flat Top
    $21.99
    As low as:
    Buy in bulk and save
  • Power Portable 3.7V 26650 Li-Ion Battery 5000mAh flat terminal

    3.7 Volt 26650 Li-Ion Battery (5000 mAh)

    Batteries/Voltage/3.7 Volt Batteries Batteries/Size Batteries/Chemistry Batteries/Brand Batteries/Voltage Batteries/Chemistry/Shop All Chemistries Batteries/Size/Shop All Sizes Batteries/Brand/Shop All Brands Batteries/Voltage/Shop All Voltage Batteries/Chemistry/Lithium Ion Batteries/Type Batteries/Type/Shop All Types
    $21.99
    As low as:
  • Panasonic NCR18650B 3.7V 3400mAh flat top lithium ion battery

    3.7 Volt Panasonic 18650 Lithium Ion Battery (3400 mAh)

    Batteries/Brand/Panasonic Batteries/Voltage/3.7 Volt Batteries/Type/Rechargeable Batteries/Type/Flat Top Batteries Batteries Batteries/Size Batteries/Chemistry Batteries/Brand Batteries/Voltage Batteries/Chemistry/Shop All Chemistries Batteries/Size/Shop All Sizes Batteries/Brand/Shop All Brands Batteries/Voltage/Shop All Voltage Batteries/Chemistry/Lithium Ion Batteries/Type/Assembly Batteries Batteries/Type Batteries/Type/Shop All Types Batteries/Size/18650 18650 / 21700 Batteries/18650 Batteries/18650 Batteries Flat Top
    $21.99
    As low as:
  • Panasonic 18650 3.7V 3400mAh lithium ion button top battery with PCB

    3.7 Volt Panasonic 18650 Lithium Ion Button Top Battery (3400 mAh) with PCB Protection

    Batteries/Brand/Panasonic Batteries/Voltage/3.7 Volt Batteries/Type/Rechargeable Batteries Batteries/Size Batteries/Chemistry Batteries/Brand Batteries/Voltage Batteries/Chemistry/Shop All Chemistries Batteries/Size/Shop All Sizes Batteries/Brand/Shop All Brands Batteries/Voltage/Shop All Voltage Batteries/Chemistry/Lithium Ion Batteries/Type Batteries/Type/Shop All Types Batteries/Size/18650 18650 / 21700 Batteries/18650 Batteries/18650 Batteries Button Top
    $21.99
    As low as:
    Buy in bulk and save
  • 5-Pack CR2330 Panasonic 3 Volt Lithium Coin Cell Battery

    5-Pack CR2330 Panasonic 3 Volt Lithium Coin Cell Battery

    Batteries/Brand/Panasonic Batteries/Voltage/3 Volt Batteries/Type/Coin Cell Lithiums Batteries Batteries/Size Batteries/Chemistry Batteries/Brand Batteries/Voltage Batteries/Chemistry/Lithium Batteries/Chemistry/Shop All Chemistries Batteries/Size/Shop All Sizes Batteries/Brand/Shop All Brands Batteries/Voltage/Shop All Voltage Batteries/Type Batteries/Type/Shop All Types Panasonic/Panasonic Coin Cell
    $21.99
    As low as:
  • Duracell 6-pack 364 SR621SW silver oxide button batteries front view

    6-Pack 364 / SR621SW Duracell Silver Oxide Button Batteries

    Batteries Batteries/Size Batteries/Chemistry Batteries/Brand Batteries/Voltage Batteries/Chemistry/Shop All Chemistries Batteries/Size/Shop All Sizes Batteries/Brand/Duracell Batteries/Brand/Shop All Brands Batteries/Voltage/Shop All Voltage Batteries/Type/Button Batteries Batteries/Type Batteries/Type/Shop All Types Batteries/Chemistry/Silver Oxide Batteries/Voltage/1.55 Volt
    $21.99
    As low as:
  • Close-up of Panasonic CR123A batteries showing product details

    8-Pack Panasonic CR123A 3 Volt Lithium Battery

    Batteries Batteries/Size Batteries/Chemistry Batteries/Brand Batteries/Voltage Batteries/Chemistry/Lithium Batteries/Chemistry/Shop All Chemistries Batteries/Size/Shop All Sizes Batteries/Brand/Shop All Brands Batteries/Voltage/Shop All Voltage Batteries/Type Batteries/Type/Shop All Types Batteries/Type/Photo Lithium Batteries Batteries/Size/CR123 Batteries/Brand/Panasonic Batteries/Voltage/3 Volt Panasonic/Panasonic Photo Lithium CR123 / CR2 Batteries/CR123 Batteries CR123 / CR2 Batteries/CR123 Batteries/Panasonic
    $21.99
    As low as:
  • Duracell Coppertop C Alkaline MN1400 batteries 14 pack box

    C Duracell Coppertop Alkaline (MN1400) Battery - (14 Pack)

    Batteries Batteries/Size Batteries/Chemistry Batteries/Brand Batteries/Voltage Batteries/Chemistry/Alkaline Batteries/Chemistry/Shop All Chemistries Batteries/Size/C Batteries/Size/Shop All Sizes Batteries/Brand/Duracell Batteries/Brand/Shop All Brands Batteries/Voltage/Shop All Voltage Batteries/Type Batteries/Type/Shop All Types Batteries/Voltage/1.5 Volt Duracell Duracell/Duracell Coppertop
    $21.99
    As low as:
  • Varta 3/V80H 3P 3.6 Volt 3 Pin NiMH Battery

    Varta 3/V80H 3P 3.6 Volt 3 Pin NiMH Battery

    Batteries Batteries/Size Batteries/Chemistry Batteries/Brand Batteries/Voltage Batteries/Chemistry/NiMH Batteries/Chemistry/Shop All Chemistries Batteries/Size/Shop All Sizes Batteries/Brand/Shop All Brands Batteries/Voltage/Shop All Voltage Batteries/Type Batteries/Type/Shop All Types Batteries/Brand/Varta Batteries/Voltage/3.6 Volt
    $22.19
    As low as:
    Buy in bulk and save
  • 12-Pack CR123A Powerizer 3 Volt Lithium Batteries

    12-Pack CR123A Powerizer 3 Volt Lithium Batteries

    Batteries Batteries/Size Batteries/Chemistry Batteries/Brand Batteries/Voltage Batteries/Chemistry/Lithium Batteries/Chemistry/Shop All Chemistries Batteries/Size/Shop All Sizes Batteries/Brand/Shop All Brands Batteries/Voltage/Shop All Voltage Batteries/Type Batteries/Type/Shop All Types Batteries/Type/Photo Lithium Batteries Batteries/Size/CR123 Batteries/Voltage/3 Volt Batteries/Brand/Powerizer CR123 / CR2 Batteries/CR123 Batteries CR123 / CR2 Batteries/CR123 Batteries/Powerizer
    $22.29
    As low as:
  • Power Portable ER34615 D size 3.6V lithium battery front view

    3.6 Volt ER34615 (SAFT LSH20) D Primary Lithium Battery (19000 mAh)

    Batteries Batteries/Size Batteries/Chemistry Batteries/Brand Batteries/Voltage Batteries/Chemistry/Shop All Chemistries Batteries/Size/D Batteries/Size/Shop All Sizes Batteries/Brand/Shop All Brands Batteries/Voltage/Shop All Voltage Batteries/Type Batteries/Type/Shop All Types Batteries/Chemistry/Lithium Thionyl Chloride Batteries/Voltage/3.6 Volt Lithium Thionyl Chloride/Blue Sleeve
    $22.39
    As low as:
    Buy in bulk and save
  • 3.7 Volt IMR 21700 Lithium Ion Battery (5000 mAh) with Tabs

    3.7 Volt IMR 21700 Lithium Ion Battery (5000 mAh) with Tabs

    Batteries Batteries/Size Batteries/Chemistry Batteries/Brand Batteries/Voltage Batteries/Chemistry/Shop All Chemistries Batteries/Size/Shop All Sizes Batteries/Brand/Shop All Brands Batteries/Voltage/Shop All Voltage Batteries/Chemistry/Lithium Ion Batteries/Type/Assembly Batteries Batteries/Type Batteries/Type/Shop All Types Batteries/Voltage/3.7 Volt 18650 / 21700 Batteries/21700 Batteries/21700 Batteries w/ Tabs 18650 / 21700 Batteries 18650 / 21700 Batteries/21700 Batteries
    $22.39
    As low as:
    Buy in bulk and save
  • 7.2V 700 mAh Li-Ion 14430 Battery Pack - With Protection IC

    7.2V 700 mAh Li-Ion 14430 Battery Pack - With Protection IC

    Batteries Batteries/Size Batteries/Chemistry Batteries/Brand Batteries/Voltage Batteries/Chemistry/Shop All Chemistries Batteries/Size/Shop All Sizes Batteries/Brand/Shop All Brands Batteries/Voltage/Shop All Voltage Batteries/Chemistry/Lithium Ion Batteries/Type Batteries/Type/Shop All Types Batteries/Voltage/7.4 Volt Batteries/Type/Battery Packs
    $22.39
    As low as:
    Buy in bulk and save

Mastering Battery Sizes

 

In the world of batteries, size does matter. The correct battery size ensures your device functions optimally, and at Only Batteries, we cater to every possible need with an extensive range of battery sizes. 

 

Understanding Battery Sizes

Battery size determines the compatibility with different devices, ranging from tiny hearing aids to large automotive applications. Different sizes also mean different voltages and capacities, affecting how long they can power your device.

 

Key Battery Sizes and Their Applications

AAA Batteries: Common in remote controls and small electronic devices.
AA Batteries: Used in a variety of household devices, from wall clocks to digital cameras.
C and D Batteries: Ideal for high-drain applications like toys and portable music systems.
9 Volt: Crucial for smoke detectors and emergency equipment.
Button Cells: Used in watches, calculators, and hearing aids.
Specialty Sizes: Such as 18650 for high-end flashlights and vape devices.


Popular Products Across Different Sizes

Duracell Coppertop AA: Known for its long-lasting power and reliability.
Energizer AAA Lithium: Best for devices requiring high energy output.
Panasonic Eneloop C and D adapters: Rechargeable solutions for high-drain needs.
Rayovac 9 Volt: Preferred for smoke alarms and professional equipment.
Renata CR2032: Reliable button cell for watches and medical devices.


Choosing the Right Size for Your Needs

Selecting the right battery size is crucial. Consider the device's power requirements, the expected duration of use, and whether the battery needs to be rechargeable. Our detailed product descriptions and specifications will help guide your choice, ensuring you pick the perfect match for your device's demands.

 

At Only Batteries, our diverse selection of battery sizes ensures that no matter your device, we have the power solution for you. From daily necessities to specialized equipment, our batteries provide the efficiency and longevity your devices need. Explore our full range of battery sizes and find the perfect fit for your electronic devices. Experience the power of choice at Only Batteries, and never run out of the energy you need!