
MacBook Battery Life Gets a Cap: New Charge Limit in macOS Tahoe 26.4
macOS Tahoe 26.4 adds a Charge Limit for MacBooks, allowing you to cap charging at 80–100% to reduce battery wear; set it via System Settings > Battery > Charging, and note Optimized Battery Charging still runs in the background unless you turn it off—lower caps suit desk-bound laptops, while higher caps preserve portable runtime.













