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Glossary

Glossary · 用語

Cycle-count threshold.

The cycle-count threshold is the number of charge cycles your specific MacBook is rated for before capacity is expected to fall below 80%. Modern MacBooks — Apple Silicon and 2018+ Intel — are rated for 1,000 cycles.

Apple publishes a per-model table on its support site. The headline numbers:

Apple Silicon (M1–M4): 1,000 cycles across the entire lineup. Intel 2018–2019: 1,000. Intel 2010–2017: 1,000 for most, with 500-cycle outliers (some MacBook Air 13" Mid 2010 and Late 2017 units). Pre-2010: 300 cycles.

Reaching the threshold doesn’t kill the Mac. macOS surfaces a “Service Recommended” notice, but the laptop keeps working at reduced runtime. Many cells hold up well past the design target; Sensei’s Saga page shows the curve over time so you can see how yours is actually trending.