AA vs. AAA — What's the Difference?
Edited by Tayyaba Rehman — By Maham Liaqat — Updated on April 18, 2024
AA batteries are larger and typically hold more charge than AAA batteries, which are smaller and used for devices requiring less power.
Difference Between AA and AAA
Table of Contents
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Key Differences
AA batteries are generally bigger and store more energy, making them suitable for devices like digital cameras and portable music players. Whereas, AAA batteries are smaller and less powerful, often used in remote controls and wall clocks.
AA batteries have a length of about 49.2 to 50.5 mm and a diameter of about 13.5 to 14.5 mm. On the other hand, AAA batteries are smaller, measuring about 44.5 mm in length and 10.5 mm in diameter, making them more suitable for compact devices.
The typical voltage for both AA and AAA batteries is around 1.5 volts, but the capacity of AA batteries is much higher. Whereas, AAA batteries have a lower capacity, which is why they don't last as long as AA batteries in high-drain devices.
AA batteries are heavier due to their larger size and capacity, which can be an important factor in the balance and weight of a device. On the other hand, AAA batteries are lighter, which might benefit devices that need to be lightweight, like small flashlights.
In terms of availability and cost, AA batteries are commonly found and generally cost less per unit of energy delivered. Whereas, AAA batteries, while also widely available, may cost a bit more per unit of energy due to their smaller size and lower energy content.
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Comparison Chart
Size
Larger (49.2-50.5 mm x 13.5-14.5 mm)
Smaller (44.5 mm x 10.5 mm)
Capacity
Higher (usually 2000-3000 mAh)
Lower (usually 1000-1200 mAh)
Voltage
1.5 volts
1.5 volts
Weight
Heavier
Lighter
Suitable Devices
Digital cameras, toys
Remote controls, wall clocks
Compare with Definitions
Aa
Frequently used in a variety of household devices.
We keep a pack of AA batteries for emergencies.
Aaa
Has a lower energy capacity suitable for low-drain devices.
AAA batteries are sufficient for clocks and remote controls.
Aa
Offers higher energy capacity than smaller cells.
AA batteries are ideal for high-drain devices due to their capacity.
Aaa
Also available in disposable and rechargeable variants.
Using rechargeable AAA batteries saves money over time.
Aa
Known for its cylindrical form factor.
The toy requires four AA batteries to operate.
Aaa
A smaller type of dry cell battery typically used in lightweight devices.
The remote control uses two AAA batteries.
Aa
Available in both disposable and rechargeable forms.
I prefer rechargeable AA batteries for environmental reasons.
Aaa
Characterized by its compact cylindrical shape.
AAA batteries are perfect for the small spaces in portable electronics.
Aa
A standard size of dry cell battery commonly used in portable electronic devices.
I replaced the AA batteries in my flashlight.
Aaa
Commonly found in everyday electronic gadgets.
Most TV remotes require AAA batteries to function.
Aa
Lava having a rough surface.
Aaa
(medicine) abdominal aortic aneurysm
Aa
(volcanology) A form of lava flow associated with Hawaiian-type volcanoes, consisting of basaltic rock, usually dark-colored with a jagged and loose, clinkery surface. Compare pahoehoe.
Aaa
(medicine) acquired aplastic anemia
Aa
Initialism of acetic acid
Aaa
(medicine) acute anxiety attack
Aa
Initialism of acting age
Aaa
(medicine) amalgam
Aa
(medical) alveolar-arterial
Aaa
(medicine) androgenic anabolic agent
Aa
Initialism of aminoacetone
Aaa
(military) anti-aircraft artillery
Aa
Initialism of amino acid
Aaa
An aneurysm of the abdominal aorta associated with old age and hypertension
Aa
Initialism of approximate absolute
Aa
Initialism of arachidonic acid
Aa
Initialism of armature accelerator
Aa
Initialism of ascending aorta
Aa
Initialism of atomic absorption
Aa
Initialism of author's alteration
Aa
Initialism of average audience
Aa
Abbreviation of adjectives
Aa
Abbreviation of arteries
Aa
Initialism of arctic-alpine
Aa
Initialism of always afloat
Aa
Abbreviation of ana
Aa
Acronym for Associate in Arts, a college degree granted for successful completion of a two-year course of study in arts or general topics.
Aa
Alcoholics Anonymous.
Aa
A dry form of lava resembling clinkers
Aa
An international organization that provides a support group for persons trying to overcome alcoholism
Aa
An associate degree in arts
Common Curiosities
What is the primary use of AA batteries?
AA batteries are primarily used in medium to high-drain devices like toys and portable music players.
Can AAA batteries be used in place of AA batteries?
No, AAA batteries cannot be used in place of AA batteries as they are smaller and have a lower capacity.
Are AA and AAA batteries interchangeable?
They are not interchangeable due to differences in size and capacity.
Which type of battery lasts longer?
AA batteries generally last longer than AAA batteries due to their larger capacity.
Why choose AA batteries over AAA?
Choose AA batteries for devices that require more power and longer usage times.
Are there rechargeable versions of both AA and AAA batteries?
Yes, both AA and AAA batteries are available in rechargeable forms.
What is the environmental impact of disposable batteries?
Disposable batteries contribute to waste and pollution, making rechargeable options more environmentally friendly.
What devices are most commonly powered by AAA batteries?
Devices like remote controls, wireless mice, and small flashlights commonly use AAA batteries.
How do I dispose of AA and AAA batteries?
Both should be recycled according to local regulations to prevent environmental harm.
Can high-capacity AAA batteries match the performance of AA batteries?
Even high-capacity AAA batteries generally do not match the overall performance of AA batteries.
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Written by
Maham Liaqat
Edited by
Tayyaba RehmanTayyaba Rehman is a distinguished writer, currently serving as a primary contributor to askdifference.com. As a researcher in semantics and etymology, Tayyaba's passion for the complexity of languages and their distinctions has found a perfect home on the platform. Tayyaba delves into the intricacies of language, distinguishing between commonly confused words and phrases, thereby providing clarity for readers worldwide.
