also: もちがよい
expression, i-adjective (yoi/ii class)
long-lasting; durable; keeps well
Describes something that remains in good condition over time, such as food, goods, or abstract qualities like luck or stamina.
このバッテリーは持ちがいい。
This battery lasts a long time.
冷凍すれば食べ物の持ちがよくなる。
Freezing makes food keep longer.
Phrase composed of 持ち (noun form of 持つ 'to hold, to last') + が (subject marker) + いい/よい/良い ('good'). Literally 'the holding is good,' extended to mean 'durable' or 'long-lasting.'