The AAA batteries are also used in the small electronic devices, such as the television commands, the MP3 readers and the numerical photo devices. Appareils qui, fonctionnant à la même tension, necessitent des courants plus elevés, utilisent des AA batteries de plus grande taille.
The AA batteries have three capacities that are superior to the cells of the AAA batteries. Cependant, avec l'efficacité accrue et la miniaturisation de l'electronique moderne, de nombreux produits conçus pour utiliser des batteries AA sont replaced par des modèles acceptant les batteries AAA. An AAA battery measures 44.5 mm in length and 10.5 mm in diameter.
Alkaline AAA batteries are around 11.5 grams long, while AAA lithium batteries are around 7.6 grams and rechargeable batteries (Ni-MH) are generally between 14 and 15 grams. The nominal voltage of AAA and lithium alkaline batteries is 1.5 V, while the cell of Ni-MH or NiCd batteries is 1.2 V. The capacity of AAA alkaline batteries is generally 900 to 1 155 mAh (3 240 to 4 158 coulombs).
