Overview

• iFixit reports that both the earbuds and charging case use glued batteries, making disassembly destructive and leading many repair shops to refuse replacements over cost and risk.
• Each earbud houses a 0.221 Wh cell, and the case contains a single 1.334 Wh battery, replacing the previous generation’s dual-cell design.
• The move to one case battery corresponds with a drop in advertised total case listening time from about 30 hours to roughly 24 hours.
• Rare-earth magnets inside the case were reduced and repositioned to preserve alignment with MagSafe and Qi2 wireless charging.
• Microscopy shows foam-infused ear tips with a bubbly internal layer for a tighter seal, while components supporting features like heart-rate tracking and IP57 protection remain sealed under glue.