WattBar – Battery Power

Battery watts in your menu bar

Only for Mac

$0.99

Mac

WattBar puts net battery power in your MacBook’s menu bar. Click to see battery level, charging status, voltage, current and your adapter’s negotiated power capacity. Understand the reading: positive power flows into the battery and negative power flows out. A near-zero reading when full does not mean your Mac is using no power. Adapter watts describe power capacity, not actual charging or wall-outlet consumption. • English, Simplified Chinese and Traditional Chinese, following your app language setting. • Numbers follow your region, independently of interface language. • Adjustable refresh interval and optional Open at Login. • Built-in help and privacy information. No account, ads or analytics SDKs. • Power readings stay on your Mac; no reading history is saved or uploaded to the developer. Requires macOS 13 or later and a MacBook with a built-in battery. Available readings depend on your Mac and macOS; missing values show —. The store edition does not monitor other apps’ CPU use or estimate total system power. Updates come from the App Store.

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Adds English and Traditional Chinese alongside Simplified Chinese, including settings, help and status messages. Numbers follow your region; durations use the appropriate singular or plural form. Battery power and adapter capacity retain their distinct meanings.

The developer, 达洋 郭, indicated that the app’s privacy practices may include handling of data as described below. For more information, see the developer’s privacy policy .

  • Data Not Collected

    The developer does not collect any data from this app.

    Privacy practices may vary, for example, based on the features you use or your age. Learn More

    The developer has not yet indicated which accessibility features this app supports. Learn More

    Seller
    达洋 郭
    Size
    310.6 KB
    Category
    Utilities
    Compatibility
    Requires macOS 13.0 or later.
    • Mac
      Requires macOS 13.0 or later.
    Languages
    English and 2 more
    • English, Simplified Chinese, Traditional Chinese
    Age Rating
    4+
    Copyright
    © 2026 Dayang Guo