Battery Monitor Service

A Python-based Windows service that monitors the battery status of your laptop. The service automatically puts the system to sleep when the laptop is running on battery power (i.e., not connected to a charger). The script runs in the background as a Windows service.

Features

• Monitors the battery status in real-time.
• Automatically puts the system to sleep when the laptop is not charging.
• Runs as a Windows service that starts automatically when the system boots.
• Minimal resource usage and configurable for any number of checks.

Requirements

• Windows operating system
• Python 3.x (tested with Python 3.10)
• pywin32 package to create and manage the Windows service
• wmi package to access system information

Installation and Setup

Step 1: Clone the Repository

git clone https://github.com/yourusername/battery-monitor-service.git
cd battery-monitor-service

Step 2: Install Required Packages

pip install -r requirements.txt
python -m pywin32_postinstall

Step 3: Configure and Install the Service

• Open bash terminal with administrator privileges

python battery_monitor_service.py install

• This registers the Python script as a Windows service.

Step 4: Start the Service

• To start the service

python battery_monitor_service.py start

• Check the status

sc query BatteryMonitorService

• Alternatively, you can verify status/start the service in serives.msc

• To stop the service

python battery_monitor_service.py stop

Troubleshooting

1. If you encounter the error MoveFileEx: Access is denied during installation or service updates, ensure that you:

• Run the commands as an administrator.
• Stop the service before making updates.
• Manually copy the pythonservice.exe file from the lib\site-packages\win32 folder to your Python installation folder.
• Worst case, restart your system and the problem should be resolved

checking Logs

To monitor the service logs, open the Windows Event Viewer:

• Press Windows + R and type eventvwr.msc to open the Event Viewer.
• Navigate to Windows Logs > Application and look for logs with the source set to Python Service.

Updating the service

• If you make changes to the script, follow these steps to update the service:

python battery_monitor_service.py stop

• Modify your source code as needed.

• Start the service again

python battery_monitor_service.py start

Uninstalling the service

• To uninstall the service:

python battery_monitor_service.py remove

• This will remove the service from Windows.

Contributing

• Feel free to fork this repository, submit issues, and make pull requests. Any contributions are welcome!