An
AAA battery is a small-sized, cylindrical battery commonly used in various portable electronic devices, such as remote controls, flashlights, toys, and wireless mice. The term "AAA" refers to the battery's size, and it stands for "Triple-A."
In terms of dimensions, a typical AAA battery is about
44.5 mm (1.75 inches) in length and
10.5 mm (0.41 inches) in diameter. They are generally used in devices that need a smaller, compact power source.
AAA batteries are available in different chemistries, such as
alkaline,
lithium, or
rechargeable NiMH (Nickel-Metal Hydride). Alkaline batteries are the most common type used for everyday devices, while rechargeable ones are used when you want to save money and reduce waste by recharging the battery after use.