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0.0000000000120 megatonnes is about half as heavy as a Battery (AA)
In other words, the weight of a Battery (AA) is 2 times that amount.
(Alkaline)
An "AA" size battery weighs 0.0000000000240 megatonnes. AA batteries came into common use during World War II and were given their name by the American National Standards Institute (ANSI) Committee C18 because they were smaller than the "A" size batteries which were invented first.
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