noun, noun which may take the genitive case particle 'no'
C size battery; C cell
Refers specifically to the C-size cylindrical battery, commonly used in flashlights and toys. Often used attributively with の.
This flashlight uses C-size batteries.
C-size batteries are larger than AA-size batteries.
AAA-size battery, even smaller.
Standard kanji spelling for C-size battery type.
Variant using numeral 2; both forms are seen.
Compound of 単 (single/cell) + 二 (two, indicating size rank) + 型 (type/model). The numbering system reflects historical battery size classification.