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macOS Tahoe 26.4 adds a charge limit slider to preserve your MacBook battery

The Mac just got an iPhone and iPad feature, as macOS Tahoe 26.4 includes a dedicated slider to adjust the battery charging limit.

Mac battery settings window on bright green background, showing charge limit slider set to 100 percent, optimized battery charging toggle enabled, and buttons labeled Learn More and Done
macOS 26.4 features a battery charge limit slider, like iOS 26.

With the debut of the iPhone 15 range, Apple introduced an opt-in setting that limited battery charging to just 80%. The goal of the feature was to help preserve battery lifespan over time. iOS 18 gave iPhone users an additional option to limit battery charging anywhere from 80% to 100%.

Now, macOS has gained the same battery-preserving capability, thanks to the first macOS 26.4 developer beta, released on Monday. The macOS Tahoe version of the feature works the same way it does on iOS, featuring a slider that lets users select a specific battery charging limit.

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