What are small battery sizes?

Small batteries, such as AA, AAA, and button cells, come in various sizes, commonly used in electronics and toys.

Which battery is smaller, AA or AAA?

AAA batteries are smaller than AA batteries, both in length and diameter, making them ideal for compact devices.

What size is an AAA battery?

AAA batteries measure around 44.5 mm in height and 10.5 mm in diameter, making them slimmer than AA batteries.

Is AAA smaller than AA batteries?

Yes, AAA batteries are smaller in length and diameter than AA batteries and are often used in more compact devices.

What size is a AAAA battery?

A AAAA battery measures approximately 42mm long and 8.3mm in diameter.

Top 10 Recommended Small Size Battery

By Henry, Updated on October 8, 2024

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Looking for the best small-size battery? This guide helps you find the ideal option for your needs. Whether it’s for remote controls, medical devices, or portable electronics, we’ve got you covered. With detailed recommendations and a clear comparison, you’ll make an informed choice in minutes.

Quick Highlights:

10 best small-size batteries analyzed and reviewed.
Comprehensive comparison: types, uses, and performance.
FAQs to address your top questions about small batteries.

Part 1. What are small size batteries?

Small-size batteries, often called miniature or compact, are designed to power portable devices that require limited energy but consistent performance. They are found in various consumer electronics, toys, and medical equipment and offer a convenient and compact power source.

Types of Small-Size Batteries:

Button Cell (Coin Cell)
AA Battery
AAA Battery
Lithium-Ion
9V Battery

Part 2. Top 10 recommended small-size batteries

Battery	Key Specifications	Benefits	Best Use Cases
Ufine 3.7 V 30mAh Lithium Ion Battery	Capacity: 30mAh, Nominal Voltage: 3.7V, Max Charge Voltage: 4.2V	Performs well in extreme temperatures, built-in safety features, long cycle life, eco-friendly design	Medical and beauty devices, 3C digital gadgets, LED lighting
Energizer Ultimate Lithium	Battery Type: AA Lithium, Capacity: Up to 5x longer, Shelf Life: Up to 20 years	Operates in extreme temperatures, longest-lasting AA battery, lightweight	Digital cameras, GPS devices for outdoor activities
Duracell CopperTop Alkaline	Battery Type: AA Alkaline, Voltage: 1.5V, Shelf Life: 10 years	Long-lasting power, leak protection, guaranteed replacement for defective batteries	Household remotes, toys, emergency kits
Panasonic Eneloop Pro	Capacity: 2550mAh, Recharge Cycles: Up to 500 times	No memory effect, retains 85% charge, ideal for cold environments	Digital cameras, gaming devices, flashlights
AmazonBasics AAA High-Performance	Battery Type: AAA Alkaline, Voltage: 1.5V, Shelf Life: 10 years	Affordable, long shelf life, easy storage	TV remotes, gaming controllers, emergency kits
Rayovac Fusion Alkaline	Battery Type: AA Alkaline, Voltage: 1.5V, Shelf Life: 12 years	Powerful, long-lasting, leak-resistant	High-powered toys, video game controllers, wireless devices
Varta Longlife Power	Battery Type: AAA Alkaline, Voltage: 1.5V, Shelf Life: 10 years	Leak-proof, reliable in extreme conditions, certified quality	Remote-controlled toys, gaming controllers, medical equipment
Sony Cycle Energy NiMH	Battery Type: AA Rechargeable, Capacity: 4600mAh, Recharge Cycles: Up to 1800 times	Environmentally friendly, durable, cost-effective	Remote controls, flashlights, cameras, gamepads
EBL Rechargeable Batteries	AA Capacity: 2800mAh, Voltage: 1.2V, Includes adapters for C and D sizes	Long-lasting, ProCyco technology, convenient storage case	Toys, remote controls, digital cameras, flashlights
Tenergy Premium Rechargeable	Battery Type: NiMH AA, Capacity: 2500mAh, Pack Size: 60	Environmentally friendly, no memory effect, versatile for high and low-drain devices	LED lights, flashlights, solar lights, RC toys

1. Ufine 3.7 V 30mAh Lithium Ion Battery

Specifications:

Capacity: 30mAh
Nominal Voltage: 3.7V
Max Charge Voltage: 4.2V
Max Discharge Current: 30mA
Operating Temperature Range: -20℃ to 60℃ (discharge)

Benefits:

Performs well in temperatures, even at -40℃.
Built-in safety features prevent overcharging and short circuits.
Long cycle life reduces the need for frequent replacements.
Ultra-low self-discharge.
Eco-friendly design with A-grade battery cells.

Best Use Cases:

It is ideal for medical and beauty devices.
Suitable for 3C digital gadgets and LED lighting.
Great for pet toys and massage equipment.

2. Energizer Ultimate Lithium

Specifications:

Battery Type: AA Lithium
Capacity: Up to 5x longer
Operating temperature: -40°F to 140°F
Unit cunt: 20 batteries
Shelf Life: Up to 20 years

Benefits:

Lasts 7 hours longer in handheld GPS devices.
Operates effectively in extreme temperatures.
World’s longest-lasting AA battery.
Outperforms alkaline batteries in cameras and flash applications.
They are lightweight, making them ideal for portable devices.

Best Use Cases:

Perfect for digital cameras and photography equipment.
It is ideal for GPS devices during outdoor activities.

3. Duracell CopperTop Alkaline

Specifications:

Battery Type: AA Alkaline
Voltage: 1.5V
Unit Count: 144 batteries
Shelf Life: Guaranteed for ten years in storage
Leak Protection: Designed to prevent damaging leaks

Benefits:

Long-lasting power for essential devices like remotes and toys.
Duralock Power Preserve technology ensures reliable performance over time.
Guaranteed replacement for devices damaged by battery defects.
It is ideal for high-demand electronics with consistent energy needs.

Best Use Cases:

Perfect for household remotes and toys.
Great for emergency kits due to extended shelf life.
Suitable for a variety of electronics requiring dependable power.

4. Panasonic Eneloop Pro

Specifications:

Capacity: 2550mAh
Voltage: 1.2V
Rechargeable Cycles: Up to 500 times
Self-discharge: Retains 85% charge
Operating temperature: Low as -4°F

Benefits:

Pre-charged and ready to use.
No memory effects; can be charged when partially drained.
Holds charge well during storage.

Best Use Cases:

Perfect for digital cameras and high-drain electronics.
Ideal for gaming devices and flashlights.
Great for cold environments due to excellent temperature performance.

5. AmazonBasics AAA High-Performance

Specifications:

Battery Type: AAA Alkaline
Voltage: 1.5V
Unit Count: 20 batteries
Shelf Life: 10 years

Benefits:

Certified frustration-free packaging for easy storage.
10-year shelf life ensures long-term reliability.
It is affordable and perfect for frequent replacements.

Best Use Cases:

It is ideal for TV remotes, gaming controllers, and toys.
Great for flashlights and clocks.
Perfect for stocking emergency kits.

6. Rayovac Fusion Alkaline

Specifications:

Battery Type: AA Alkaline
Voltage: 1.5V
Unit Count: 30 batteries
Shelf Life: Holds power for up to 12 years
Composition: Alkaline, leak-resistant design

Benefits:

Rayovac’s most potent AA battery for high-drain devices.
Long-lasting power for gaming controllers and wireless headsets.
Strong durability in storage and usage.

Best Use Cases:

Perfect for high-powered toys and video game controllers.
Ideal for wireless devices like headsets and remotes.
Great for emergency kits with extended shelf life.

7. Varta Longlife Power

Specifications:

Battery Type: AAA Alkaline
Voltage: 1.5V
Unit Count: 12 batteries
Shelf Life: Up to 10 years
Origin: Made in Germany

Benefits:

High performance for devices with high power demands.
Long-lasting power is ideal for every day and heavy-use gadgets.
The leak-proof design ensures safety and durability.
Certified quality according to international standards.
Reliable in extreme conditions for medical devices and more.

Best Use Cases:

Ideal for remote-controlled toys and digital thermometers.
Great for high-consumption devices like gaming controllers and torches.
Perfect for medical equipment and electronic tools.

8. Sony Cycle Energy NiMH

Specifications:

Battery Type: AA Rechargeable
Voltage: 1.2V
Capacity: 4600mAh
Recharge Cycles: Up to 1800 times
Brand: Sony

Benefits:

Designed to ensure durability and reliability.
Environmentally friendly, producing less waste compared to disposable batteries.
It is ideal for various devices, from flashlights to gaming controllers.
Cost-effective option, saving money over time with multiple recharge cycles.
Consistent power delivery for high-drain devices.

Best Use Cases:

Perfect for everyday household items like remote controls and flashlights.
Suitable for high-demand devices like cameras and gamepads.
It is an excellent choice for emergency supplies and portable electronics.

9. EBL Rechargeable Batteries

Specifications:

AA Batteries: 2800mAh NiMH (20 pcs)
Adapters: 5 C-size and 4 D-size battery adapters
9V Batteries: 600mAh rechargeable (2 pcs)
Voltage: 1.2V across all rechargeable batteries

Benefits:

C and D adapters easily convert AA batteries for larger devices.
ProCyco technology ensures long-lasting battery life.
It is ideal for frequent use in household gadgets.
Includes a convenient storage case for organization.

Best Use Cases:

Perfect for toys, remote controls, and digital cameras.
Great for flashlights and portable audio players.
Ideal for emergency kits and handheld games.

10. Tenergy Premium Rechargeable

Specifications:

Battery Type: NiMH AA Rechargeable
Voltage: 1.2V
Capacity: 2500mAh
Pack Size: 60 Count
Dimensions: 50.5mm (length) x 14.5mm (diameter)

Benefits:

Environmentally friendly, reducing waste from disposable batteries.
Ideal for both high-drain and low-drain devices, versatile for everyday use.
There is no memory effect, allowing for flexible charging without capacity loss.
Long-lasting performance in a wide range of household devices.

Best Use Cases:

Perfect for LED lights, flashlights, and solar lights.
Suitable for remote controls, controllers, and cordless phones.
Great for powering RC toys, garden lights, and alarm clocks.

Part 3. Key factors to consider when choosing small batteries

Selecting the correct small battery is about more than just size. You need to consider your device’s specific requirements and expected performance.

Device Compatibility: Make sure the battery size matches the device’s slot.
Longevity: For high-drain devices, choose a battery with a longer lifespan.
Rechargeability: If you use a battery frequently, consider a rechargeable option.
Power Output: Ensure the battery matches your device’s power needs.
Environmental Impact: If sustainability matters, opt for eco-friendly or recyclable batteries.

Part 4. FAQs

What are small battery sizes?

Small batteries, such as AA, AAA, and button cells, come in various sizes.
Which battery is smaller, AA or AAA?

AAA batteries are more minor than AA batteries.
What size is an AAA battery?

AAA batteries measure around 44.5 mm in height and 10.5 mm in diameter, making them slimmer than AA.
Is AAA smaller than AA batteries?

AAA batteries are smaller in length and diameter than AA batteries and are often used in more compact devices.
What size is a AAAA battery?

A AAAA battery measures approximately 42mm long and 8.3mm in diameter.