WattBar

A lightweight macOS menu bar utility to monitor battery wattage in real-time.

Features

• Displays current power usage in watts
• Shows battery charge level and health
• Calculates remaining battery time when discharging
• Displays battery temperature

Installation

1. Download the latest release from the GitHub Releases page.
2. Move WattBar.app to your Applications folder.
3. Open the app (macOS may warn about an “unidentified developer” — right-click → Open).

Usage

• Open app
• Hover "capacity" to preview battery capacity
• Tap "temp" to toggle Celcius/Fahrenheit

Development

WattBar is written in Swift using SwiftUI and IOKit. The core monitoring logic is in WattMonitor.swift.