The AAAA is a popular small-cylinder battery that is commonly used in graphics tablets and in smaller, portable electronic devices, including Laser Pointers, PDAs, Two-way Radios, Voice Recorders and many other battery-powered applications.
Specification:
Nominal Voltage: 1.5V
Chemistry: Alkaline
Length: 42.5 mm
Diameter: 8.3 mm
Zinc-Manganese Dioxide (Zn/MnO2) No added mercury or cadmium
Also known as Quadruple A, Quad A, E96, LR61, 4061, MN2500, GP25A, LR8D425, ANSI-25A, IEC-LR8D425, LR61.