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How to find the health of the battery in your laptop in Windows 7

How will you find the health of your battery in your laptop?? This is easy my friend. Open Command Prompt. (Run > cmd) Type “powercfg –energy” in command prompt without quotes. A HTML file named "energy-report.html " will be generated and   stored in your Primary Hard drive letter drive, say C drive. Open the html file and there you can see something like     Design full Charge       Last Full Charge The lower the value of the Last full charge than the design full charge, the lower your batter has gone down in its efficiency and capability!!!!!!!!!