The lifespan the battery of a laptop is limited. Microsoft Windows 7 gives you the opportunity to examine the battery of your laptop to know its current capacity and efficiency potential of maximum load without using any third party software.
At the same time it will provide you with a detailed report of the power management in Microsoft Windows 7.
Click start, type “cmd” (without the quotation marks) in the search field. The command prompt icon will appear on the top of search results. Right click over it, click “Run as Administrator” :
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Type “Powercfg-energy” (without the quotation marks) and hit enter:
It will say you to wait for 60 seconds and generate a report. The HTML version of the report will be in c: > windows > system32 and the file name will be energy-report.html.
Type exit in the command prompt and hit enter to close the console.
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Nice, you’ve shown us how to generate an .html with some numbers and words on it. Now tell us how you interpret this information to actually tell if the battery is good or bad.