How do I show battery percentage on a Mac?

Open System Settings, choose Control Center, find Battery, then turn on Show Percentage. You can also choose whether the battery icon appears in the menu bar and Control Center.

Can macOS show battery time remaining in the menu bar?

No. Modern macOS shows battery percentage and charging status, but Apple removed the native menu bar time-remaining estimate in 2016. TurtleBar restores a live time-remaining estimate in the menu bar.

Why is battery percentage not enough?

The same percentage can mean very different runtime depending on brightness, apps, video calls, browser tabs, and Low Power Mode. A time estimate is more useful when you need to know whether your MacBook will last through a meeting, flight, or class.

How to Show Battery Percentage on Mac Menu Bar

The built-in Mac battery percentage is easy to turn on, but it only answers “how full is the battery?” If you actually need to know how long your MacBook will last, add a live time-remaining estimate and Low Power Mode automation with TurtleBar.

Quick steps

Turn on Mac battery percentage

Open System Settings.
Click Control Center in the sidebar.
Scroll to Battery.
Turn on Show Percentage.
Set Battery to show in the menu bar if the icon is missing.

What the Mac battery percentage does — and does not tell you

Percentage is useful for a quick state-of-charge check. It does not tell you whether 42% is one hour or four hours, because runtime changes with display brightness, video calls, browser load, external displays, temperature, and background apps.

That is why Apple’s old time-remaining indicator was so useful. Modern macOS still does not bring that estimate back to the menu bar. If you want that workflow, read the deeper Mac battery time remaining guide or use TurtleBar directly.

Better menu bar workflow

Show percentage and time remaining together

TurtleBar puts a live battery time estimate back in the menu bar and can automatically turn on Low Power Mode at a battery percentage you choose. Keep Apple’s percentage on for a simple charge number; use TurtleBar when you need to plan your day.

Automate Low Power Mode

Troubleshooting: battery percentage is missing

Battery icon missing: System Settings → Control Center → Battery → enable menu bar display.
Percentage missing: make sure “Show Percentage” is enabled, not only the Battery icon.
Battery health concern: check MacBook battery health and cycle count.
Percentage looks wrong: read the MacBook battery calibration guide before doing deep discharge myths.

FAQ

Can I show battery percentage on the Mac lock screen?

macOS mainly controls the battery indicator through Control Center and the menu bar. For day-to-day planning, the menu bar is the reliable place to keep percentage visible while you work.

Does showing battery percentage drain battery?

No meaningful amount. The battery percentage itself is a lightweight system indicator. The apps you run, display brightness, and Low Power Mode setting matter far more.

What should I use instead of percentage?

Use percentage for “how full is it?” and time remaining for “will it last?” TurtleBar is built for the second question: live battery time in the menu bar, alerts, and automatic Low Power Mode triggers.