noun
Technical term used in engineering and product design to describe how long a product or component can be used before it fails or needs replacement.
このバッテリーのサービスライフは約5年です。
The service life of this battery is about five years.
部品のサービスライフを延ばすために定期的なメンテナンスが必要だ。
Regular maintenance is necessary to extend the service life of the parts.