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  • Power Portable 12.8V LiFePO4 battery pack with prewired leads
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    Power Portable

    12.8 Volt LiFePO4 Battery Pack with Leads (1500 mAh)

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    $69.59
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  • Duracell rechargeable AA and AAA NiMH battery combo pack
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    Duracell

    12 x AA (2500 mAh) + 6 x AAA (900 mAh) NiMH Duracell Rechargeable Batteries Combo

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    $69.99
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  • Energizer CR2 3 volt lithium batteries 12-pack in card packaging
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    Energizer

    12-Pack CR2 Energizer 3 Volt Lithium Batteries (6 Cards of 2)

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    $69.99
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  • 12-Pack CR2430 Duracell 3 Volt Lithium Coin Cell Batteries Wholesale & direct to consumer
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    Duracell

    12-Pack CR2430 Duracell 3 Volt Lithium Coin Cell Batteries

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    $69.99
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  • Axial lead Xeno XL-050F battery for compatible electronics
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    Xeno

    12-Pack Xeno XL-050FAX 3.6V 1/2 AA 1.2Ah Lithium Batteries w/ Axial Leads

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    $69.99
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  • Front view of Energizer A544 alkaline battery pack, 18 count
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    Energizer

    18-Pack A544 (4LR44) Energizer 6 Volt Alkaline Batteries

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    $69.99
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  • 24-pack Rayovac CR2450 3 volt lithium coin cell batteries
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    Rayovac

    24-Pack CR2450 Rayovac 3 Volt Lithium Coin Cell Batteries

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    $69.99
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  • 24-Pack CR2450 Rayovac 3 Volt Lithium Coin Cell Batteries (12 Cards of 2)
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    Rayovac

    24-Pack CR2450 Rayovac 3 Volt Lithium Coin Cell Batteries (12 Cards of 2)

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    $69.99
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  • Panasonic CR3032 3 volt lithium coin cell batteries, 25-pack
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    Panasonic

    25-Pack CR3032 Panasonic 3 Volt Lithium Coin Cell Batteries

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    $69.99
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  • Tadiran TL-2200/S C size battery with button top
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    Tadiran

    3-Pack Tadiran TL-2200/S 3.6V C 7.2 Ah Lithium Batteries (ER26500 / LS26500)

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    $69.99
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  • Eight 3.2V 18500 button top LiFePO4 batteries
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    3.2V LiFePO4 4 Slot Battery Charger + 8x 18500 1000mAh Button Top Batt

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    Was: $72.69
    Now: $69.99
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  • Energizer rechargeable NiMH battery combo pack with AA, AAA, C, D and 9V batteries
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    Energizer

    4 AA (2300mAh) + 4 AAA (800mAh) + 2 C (2500mAh) + 2 D (2500mAh) + 1 9V (175mAh) Energizer Rechargeable NiMH Battery Combo

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    $69.99
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  • Panasonic CR2025 3V lithium coin cell batteries pack of 48
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    Panasonic

    48-Pack CR2025 Panasonic 3 Volt Lithium Coin Cell Batteries (24 Cards of 2)

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    $69.99
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  • Samsung 18650 3.7V 1500mAh rechargeable battery 6-pack
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    Samsung

    6-Pack 3.7 Volt Samsung 18650 Lithium Ion Batteries (1500 mAh)

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    $69.99
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  • Close-up of Molicel P28A 18650 battery showing spot welded tabs
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    Molicel

    6-Pack Molicel P28A 18650 3.6 Volt Lithium Ion Batteries (2800mAh) W/ Tabs

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    $69.99
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  • Eveready Super Heavy Duty C batteries 72-pack, SKU 26150
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    Eveready

    72-Pack C Eveready Super Heavy Duty Batteries (36 Cards of 2)

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    $69.99
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  • Panasonic D size 1.5V heavy duty battery pack, SKU 20113

    Panasonic

    96-Pack D Panasonic Heavy Duty Batteries (48 Cards of 2)

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  • Black & Decker 36V 3000mAh replacement battery front view
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    Black & Decker

    Black & Decker 36 Volt 3000 mAh Li-ion Replacement Battery

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    $69.99
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  • Roomba 500 14.8V Li-ion replacement battery pack
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    Roomba

    Roomba 500 14.8V 6.5Ah Li-ion Replacement Battery Pack

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    Was: $72.99
    Now: $69.99
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  • Power Portable AAA and AA rechargeable NiMH battery combo
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    Power Portable

    12 x AAA (1200 mAh) + 12 x AA (2700 mAh) NiMH Batteries

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    $70.59
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  • Yaskawa HW0470360-A lithium PLC battery for robot controllers
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    Yaskawa

    Yaskawa HW0470360-A 3.6V Lithium PLC Battery

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    $70.69
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Shop All Sizes
 

Exploring the Different Sizes of Batteries We Sell at Mega Batteries

 

At Mega Batteries, we understand that choosing the right battery size is crucial for the optimal performance of your devices. With a wide array of battery sizes available, we cater to various needs, from everyday household items to specialized equipment. 

 

1. AA Batteries

AA batteries are among the most commonly used batteries, powering everything from remote controls and toys to digital cameras. They typically provide a nominal voltage of 1.5 volts for alkaline versions and 1.2 volts for rechargeable NiMH types.

Applications: Ideal for low to moderate-drain devices, AA batteries offer reliable performance and longevity​.

 

2. AAA Batteries

AAA batteries are smaller than AA batteries but are equally versatile. They are used in devices like wireless mice, remote controls, and small flashlights. Their nominal voltage is also 1.5 volts for alkaline batteries and 1.2 volts for rechargeable variants.

Applications: Best suited for low-drain devices, AAA batteries are a staple in many households​.

 

3. C Batteries

C batteries are larger and provide more power than AA and AAA batteries. They are typically used in toys, flashlights, and portable radios, delivering a nominal voltage of 1.5 volts.

Applications: C batteries are ideal for high-drain devices, providing the necessary power for prolonged use​.

 

4. D Batteries

D batteries are among the largest cylindrical batteries, often found in high-drain devices such as large flashlights, boomboxes, and certain types of toys. They provide 1.5 volts and are known for their high capacity.

Applications: Suitable for devices that require long-lasting power, D batteries are commonly used in camping gear and emergency lighting​.

 

5. 9V Batteries

9V batteries are essential for devices that require a higher voltage, such as smoke detectors, guitar pedals, and some types of remote controls. They have a unique rectangular shape and provide a nominal voltage of 9 volts.

Applications: Widely used in safety devices and electronics requiring more power, 9V batteries are indispensable for home safety​.

 

6. 18650 Batteries

18650 batteries are cylindrical lithium-ion batteries that have gained popularity in high-drain devices like laptops, flashlights, and electric vehicles. They typically provide a nominal voltage of 3.7 volts.

Applications: These batteries are ideal for portable electronics and applications that demand high energy density​.

 

7. CR123A Batteries

CR123A batteries are lithium batteries used primarily in cameras, flashlights, and some security devices. They offer a nominal voltage of 3 volts and are known for their compact size and high energy density.

Applications: Often used in high-performance devices, CR123A batteries are ideal for photography and security systems​.

 

8. Specialty Batteries

In addition to standard sizes, we also offer specialty batteries for specific applications. These include:

Button Cell Batteries: Used in watches, hearing aids, and small electronic devices.
Solar Batteries: Designed for solar-powered systems, allowing efficient energy storage​.

Rechargeable Packs: Often used in power tools and electronic devices that require higher capacities​.

 

At Mega Batteries, we pride ourselves on providing a comprehensive selection of battery sizes to suit every need. From AA and AAA to 9V and specialty batteries, we offer high-quality power solutions that keep your devices running smoothly.

 

Explore our extensive inventory today to find the perfect battery size for your requirements! For more information and to shop for your battery needs, visit Mega Batteries.