AAAA battery - Wikipedia
https://en.wikipedia.org/wiki/AAAA_battery
WEBAAAA battery - Wikipedia. Contents. hide. (Top) History. Types. Uses. See also. References. External links. AAAA battery. Left to right: D, C, AA, AAA, AAAA, and 9-volt batteries. The AAAA battery (usually read as quadruple-A) is 42.5 mm long and 8.3 mm in diameter. The alkaline cell weighs around 6.5 g and produces 1.5 V.
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