The "battery_firmware" Command
ChromeOS Battery Firmware Information
The battery_firmware command in ChromeOS provides access to detailed battery information through the Chrome OS Shell (crosh). This chapter explains how to use this command to query and understand your device's battery information.
Command Overview
The basic syntax for the command is:
battery_firmware info
Understanding Battery Information
When you run the command, it provides various details about your device's battery. The information typically includes:
Basic Battery Details
- Manufacturer information
- Serial number
- Manufacturing date
- Design capacity
Current Status
- Present capacity
- Cycle count
- Battery health
- Firmware version
Using the Command
Basic Query
To get battery information:
battery_firmware info
This command will display all available battery information in a formatted output.
Interpreting the Output
Manufacturer Information
- Helps identify the battery's origin
- Useful for warranty and replacement purposes
- Can help verify authentic parts
Battery Health Metrics
- Current capacity vs. design capacity
- Cycle count information
- Overall battery health status
Firmware Details
- Current firmware version
- Helps track if updates are needed
- Important for system maintenance
Best Practices
Regular Monitoring
- Periodic Checks
- Monitor battery health regularly
- Track changes in capacity
Note any significant degradation
Documentation
- Keep records of battery metrics
- Track changes over time
- Note any unusual changes
Maintenance
- Health Management
- Monitor cycle counts
- Watch for capacity changes
Track charging patterns
System Updates
- Keep firmware up to date
- Follow ChromeOS update recommendations
- Monitor for battery-related updates
Common Use Cases
Device Maintenance
- Regular health checks
- Troubleshooting battery issues
- Verifying battery authenticity
System Administration
- Fleet management
- Device inventory
- Warranty tracking
Troubleshooting
Common Issues
- Capacity Concerns
- Compare current vs. design capacity
- Check cycle count
Monitor charging behavior
Performance Issues
- Check battery health
- Verify firmware version
- Monitor temperature data
Additional Resources
- ChromeOS Battery Care Guide
- Battery Maintenance Best Practices
- ChromeOS Update Documentation
This command is particularly useful for: - System administrators - IT support personnel - Users monitoring device health - Troubleshooting battery issues