AAAA Battery

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Standard 3-Volt AAA battery measurements using a caliper range between approximately 43 and 45 millimeters in length and between about 10 and 12 millimeters in width, including the tip at the bottom. Height or thickness for standard sizes of this particular AA cell falls somewhere around 5-6 millimeters depending on what's actually being used; this number varies among battery types since it seems like variations exist that don't meet these dimensions at all when manufactured with non-traditional styles.