How long should wireless earbud batteries last?

Most earbuds last 5 8 hours per charge, with the charging case providing 20 40 hours total. For daily use (commute + gym), 6+ hours per charge is comfortable. Battery life decreases over 1 2 years as the battery degrades. If you use ANC, expect 20 30% less battery. The case battery matters too a 30+ hour case means weekly charging instead of daily.