noun, noun which may take the genitive case particle 'no'
N size battery
Refers to the N-size cylindrical battery (IEC designation LR1). Often used in small electronic devices.
This remote control uses N size batteries.
N size dry cells are not very common.
Standard kanji spelling using Arabic numeral 5.
Variant using kanji numeral 五; less common but seen in some contexts.
Compound of 単 (single/cell) + ５ (number 5) + 型 (type/model), following the Japanese battery size naming convention.