From Longman Dictionary of Contemporary Englishlong-lifeˌlong-ˈlife adjective 1 LONG TIMElong-life products continue working longer than ordinary ones long-life batteries2 British English long-life foods stay fresh longer than ordinary ones long-life milk
Examples from the Corpus
long-life• New products, including liquid crystal display televisions, long-life batteries and new materials offer promise for the future.• This fun timepiece features a talking alarm, a one-year guarantee and a long-life battery.• Sceptre 404 and 505 are a mix of sable and synthetic providing a long-life brush of high quality.• When long-life milk is packaged, it is sealed in aseptic boxes that prevent light and air from penetrating.• Tofu is available fresh or in long-life packs; the fresh variety has a firmer texture. 