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What size is a dry cell AA battery?

Published in Battery Dimensions 1 min read

A dry cell AA battery's size is defined by its length and diameter, falling within specific ranges.

AA Battery Dimensions

Here's a breakdown of the standard dimensions for a dry cell AA battery, as per available references:

Dimension Size
Length 49.5–50.5 mm (1.95–1.99 in)
Diameter 13.7–14.5 mm (0.54–0.57 in)
  • Length: AA batteries typically measure between 49.5 and 50.5 millimeters (1.95 to 1.99 inches) in length, including the button terminal.
  • Diameter: The diameter of an AA battery usually falls between 13.7 and 14.5 millimeters (0.54 to 0.57 inches).

These dimensions ensure that AA batteries are universally compatible with devices designed to use them.