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0.021 kilograms is about one-and-four-fifths times as heavy as a Battery (AAA)
In other words, the weight of a Battery (AAA) is 0.560 times that amount.
(Alkaline)
An "AAA" size battery weighs 0.012 kilograms. Batteries are named by the American National Standards Institute (ANSI) Committee C18 and AAA batteries were given their name because they were smaller than the "AA" and "A" size batteries which were invented first.
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