An AA battery measures 51 mm (2.0 in) in length—50.1 mm (1.97 in) without the button terminal—and 13.5–14.5 mm (0.53–0.57 in) in diameter.[1]
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tubing plastic 20ft military 5/8ID 7/8OD unused $7.00 per 10 t
A triple-A battery is a single cell and measures 44.5 mm in length and 10.5 mm in diameter.