noun
AAAA battery; AAAA cell
Abbreviation of 単六型乾電池. Used in everyday contexts when referring to the small cylindrical battery size.
このリモコンには単６電池が２本必要です。
This remote control requires two AAAA batteries.
単６は単４よりさらに細い電池です。
AAAA batteries are even thinner than AAA batteries.
Refers to AAA batteries, which are slightly larger in diameter than AAAA (単６).
Refers to AA batteries, larger than both AAA and AAAA.
Abbreviation of 単六型乾電池 (tanroku-gata kandenchi), literally 'single-six type dry cell', where 単六 indicates the size classification.