HARDWARE DIAGNOSTICS

Battery Health Analyzer.

Real-time hardware telemetry and graphical degradation visualization. Instantly calculate exact milliwatt-hour (mWh) metrics to diagnose failing laptop batteries over the network.

SEE HOW IT WORKS

WMI / CIM Dispatcher ● CONNECTED

[UHDC] BATTERY HEALTH ANALYZER

[i] Querying battery telemetry via WinRM...

[UHDC SUCCESS] Battery telemetry retrieved.

Hardware Battery Health

Design Capacity: 68,004 mWh

Full Charge Capacity: 42,162 mWh

62% Health

Bypass Legacy HTML Reports

When a remote user reports their laptop battery is draining rapidly, standard protocol requires walking them through generating a hidden powercfg HTML report and emailing it to the help desk. This engine extracts the raw data directly into your dashboard.

Telemetry Extraction

Establishes a remote PowerShell session over Port 5985 (HTTP). It queries the hidden root\wmi namespace to extract the exact DesignedCapacity and FullChargedCapacity properties.

Data Transformation

Calculates the degradation percentage in memory. It dynamically assigns a status color (Green for >75%, Yellow for 50-75%, Red for <50%) based on the mathematical result.

Dynamic UI Injection

Constructs a raw HTML/CSS string containing the formatted data and progress bar, outputting it directly into the web dashboard's telemetry stream for immediate visual triage.

INTERACTIVE TRAINING ENGINE

⭐ 150 XP

How Junior Techs Learn This Tool:

While the UHDC uses PowerShell to query the raw WMI battery namespaces and render a graphical health bar, a junior technician should know how to generate a battery report manually using classic command-line tools. The training engine teaches them how to utilize Sysinternals PsExec to remotely execute the native powercfg utility to generate a comprehensive HTML battery report directly on the target's C: drive.

psexec \\$Target powercfg /batteryreport /output "C:\battery_report.html"

The In-Person Equivalent

Opening an elevated Command Prompt, typing 'powercfg /batteryreport', opening the generated HTML file in a browser, and manually doing the math between Design Capacity and Full Charge Capacity.

Technical Q&A

Q: Why did we stop using the native `powercfg` command?

The legacy powercfg method required generating a physical file on the user's C: drive, transferring it over the network via SMB (Port 445), and opening a new browser tab on the technician's machine. This was slower, prone to file-lock errors, and required broader firewall rules. Querying WMI directly is faster, requires only WinRM (Port 5985), and provides a vastly superior user experience within the dashboard.

Q: What happens if I run this workflow against a desktop computer instead of a laptop?

Desktop motherboards lack the necessary battery API telemetry. The WinRM connection will succeed, but the WMI query will return null. The engine handles this gracefully by catching the error and displaying: "No battery data found. (Is this a desktop PC?)" in the console.

Q: At what percentage should a battery be physically replaced?

While this depends on your specific organization's hardware lifecycle policies, a battery that falls below 50% to 60% of its original Design Capacity will typically cause noticeable workflow disruptions for the user (e.g., dying within 1-2 hours off the charger) and warrants a warranty claim or replacement.