Dimensions 4.5-Volt, D, C, AA, AAA, 9-Volt, SR41/AG3, SR44/AG13 cells An AA battery measures 51mm in length (50.1mm without the button terminal), 13.514.5mm in diameter, (1.970.56 inches). Traditional alkaline AA batteries have mass of roughly 23g (0.81 oz), Lithium AA batteries have mass around 15g (0.5oz), and rechargeable NiMH batteries have mass about 31g (1.1oz). Primary chemistry and capacity Primary (non-rechargeable) zinc-carbon (Leclanch cell) AA batteries have around 400900 milliamp-hours capacity, depending entirely on test conditions, duty cycle, and cut-off voltage selected. Zi

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