• 12-Pack 3.7 Volt RCR123A (16340) Lithium Ion Batteries (700 mAh)

    12-Pack 3.7 Volt RCR123A (16340) Lithium Ion Batteries (700 mAh)

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  • 12-Pack Tadiran TL-5104/P 3.6V AA 2.1 Ah Lithium Batteries w/ Axial Leads (ER14505)

    12-Pack Tadiran TL-5104/P 3.6V AA 2.1 Ah Lithium Batteries w/ Axial Leads (ER14505)

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  • 50-Pack 1/3 AAA Sanyo 50 mAh Flat Top NiCd (N50AAA) Batteries

    50-Pack 1/3 AAA Sanyo 50 mAh Flat Top NiCd (N50AAA) Batteries

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  • 12-Pack 18650 3.6v 2000 mAh li-ion - Protected (Button Top) - Purple

    12-Pack 18650 3.6v 2000 mAh li-ion - Protected (Button Top) - Purple

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    $152.59
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  • 3-Pack Tadiran TL-4930/S XOL Series 3.6V D 19 Ah Lithium Batteries (LSH20 / LS33600) Wholesale & direct to consumer

    3-Pack Tadiran TL-4930/S XOL Series 3.6V D 19 Ah Lithium Batteries (LSH20 / LS33600)

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    $152.59
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  • 12-Pack Tadiran TLL-5902/T 3.6V 1/2 AA 1.1 Ah iXtra Series Lithium Batteries W/Tabs (ER14250)

    12-Pack Tadiran TLL-5902/T 3.6V 1/2 AA 1.1 Ah iXtra Series Lithium Batteries W/Tabs (ER14250)

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  • 50-Pack AA NiMH 600 mAh Rechargeable Batteries

    50-Pack AA NiMH 600 mAh Rechargeable Batteries

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    $153.29
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  • 50-Pack AA NiMH 800 mAh Rechargeable Batteries

    50-Pack AA NiMH 800 mAh Rechargeable Batteries

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    $153.29
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  • 12-Pack 9 Volt Tenergy Premium NiMH Batteries (250 mAh)

    12-Pack 9 Volt Tenergy Premium NiMH Batteries (250 mAh)

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    $153.99
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  • 2-Pack Heine X-382 Replacement 3.5 Volt NiMH Medical Batteries for Otoscope Handles

    2-Pack Heine X-382 Replacement 3.5 Volt NiMH Medical Batteries for Otoscope Handles

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    $153.99
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  • 3-Pack Tadiran TL-5930/S 3.6V D 19 Ah Lithium Batteries (LSH20 / LS33600) Wholesale & direct to consumer

    3-Pack Tadiran TL-5930/S 3.6V D 19 Ah Lithium Batteries (LSH20 / LS33600)

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  • 4-Pack Welch Allyn 72600 Replacement 2.5 Volt NiCd Medical Batteries for Welch Allyn Pocket Scope

    4-Pack Welch Allyn 72600 Replacement 2.5 Volt NiCd Medical Batteries for Welch Allyn Pocket Scope

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  • 50-Pack CR3032 Panasonic 3 Volt Lithium Coin Cell Batteries

    50-Pack CR3032 Panasonic 3 Volt Lithium Coin Cell Batteries

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    $153.99
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  • Makita 36 Volt 4000 mAh Li-ion Replacement Battery

    Makita 36 Volt 4000 mAh Li-ion Replacement Battery

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    $153.99
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  • 12-Pack Tadiran TL-2450/P 3.6V 0.55 Ah Lithium Batteries w/ PC Pins

    12-Pack Tadiran TL-2450/P 3.6V 0.55 Ah Lithium Batteries w/ PC Pins

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    $154.69
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  • 12-Pack Tadiran TL-4903/S 3.6V AA 2.4 Ah Lithium Batteries (ER14505) Wholesale & direct to consumer

    12-Pack Tadiran TL-4903/S 3.6V AA 2.4 Ah Lithium Batteries (ER14505)

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    $154.69
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  • 12-Pack Tadiran TL-5104/S 3.6V AA 2.1 Ah Lithium Batteries (ER14505)

    12-Pack Tadiran TL-5104/S 3.6V AA 2.1 Ah Lithium Batteries (ER14505)

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    $154.69
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  • 50-Pack Panasonic CR1220 3 Volt Lithium Coin Cell Batteries

    50-Pack Panasonic CR1220 3 Volt Lithium Coin Cell Batteries

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    $156.39
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  • 11.1 Volt Lithium Ion Battery Pack (6600 mAh) with Protection IC

    11.1 Volt Lithium Ion Battery Pack (6600 mAh) with Protection IC

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    $156.79
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  • 22.2 Volt Lithium Ion Battery Pack (2600 mAh)  with Protection IC

    22.2 Volt Lithium Ion Battery Pack (2600 mAh) with Protection IC

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    $156.79
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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!