単たん４よん型がた

noun, noun which may take the genitive case particle 'no'

AAA size (battery)

Refers specifically to the AAA battery size, commonly used in small electronic devices. Often used attributively with の.

• このリモコンは単たん４型がたの電でん池ちを使つかいます。

  This remote control uses AAA batteries.

• 単たん４型がたの乾かん電でん池ちを買かってきてください。

  Please buy some AAA dry-cell batteries.