May be the power adapter is damaged, can replace the power plug; 2. There may be stains on the metal contacts inside the charging box, which can be cleaned up and used again; 3. The charging box may be damaged, you can contact after-sales maintenance.
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The Airpods offer up to five hours of listening time or two hours of talk time on a single charge. If the charging case is fully charged, you can get more than 24 hours of listening time or up to 11 hours of talk time after multiple charges. Among them, the AirPods2 generation is charged in the charging case for 15 minutes, and has a maximum of 2 hours of talk time.