Battery Manager for macOS

Automated battery charge management system that protects your MacBook's battery health by maintaining optimal charge levels.

Features

• Automatically enables charging when battery drops below 20%
• Disables charging when battery reaches 80%
• Runs continuously via launch agent (every 3 minutes)
• Includes installer package for easy deployment
• Self-contained installation with automatic shortcut configuration

Installation

1. Build the installer package:

chmod +x build.sh
./build.sh

2. Install the package:

open BatteryManagerInstaller.pkg

The installer will:

• Copy launch agent to ~/Library/LaunchAgents
• Load the background service
• Place shortcut on your Desktop for verification
• Automatically open the shortcut for initial configuration

System Components

com.luracast.batterymanager.plist (Launch Agent)

• Runs every 180 seconds (3 minutes)
• Executes the BatteryManager shortcut
• Automatic loading on system start
• Logs output to /tmp/batterymanager.{out,err}

postinstall Script

• Installs launch agent to user's LaunchAgents directory
• Copies shortcut to Desktop
• Sets proper file permissions
• Loads the launch agent
• Clears file quarantine attributes

build.sh Build Script

1. Signs all script files with developer ID
2. Creates installation package using pkgbuild
3. Sets proper permissions on package components

Customization

To modify battery thresholds:

1. Open BatteryManager.shortcut
2. Edit the "If" conditions:
   • Change 20% (low threshold)
   • Change 80% (high threshold)
3. Rebuild and reinstall the package

Troubleshooting

Check service status:

launchctl list | grep com.luracast.batterymanager

View logs:

tail -f /tmp/batterymanager.out /tmp/batterymanager.err

Uninstall:

launchctl remove com.luracast.batterymanager
rm ~/Library/LaunchAgents/com.luracast.batterymanager.plist
rm ~/Desktop/BatteryManager.shortcut

License

MIT License - See LICENSE file for details