Cmos battery check utility

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I recently did a 'stress test' on this battery (which will show you the minimum time you can expect while running the laptop at 'full power'), and it only managed 36 minutes. I've had a battery fail a few months after it tested 45% below its design capacity. From experience I know that this battery will only last a few months more. On the right is an old battery (around 4 years old) which shows that the last full charge was nearly 40% below the design capacity. As you can see, the last full charge is only some 5.5% below the design capacity. On the left is a relatively new battery (a few months old). Just open the report in your web browser & scroll down to the Battery Information section.Ībove are two samples. Since we directed the command prompt to your desktop, the report will be placed on your desktop as energy-report.html. When finished, powercfg will generate a report (in html format) which shows errors, warnings etc. If you want to use it for more information than just the battery details, make sure no other processes are running during that time Powercfg will enable a trace for 60 seconds. Next type powercfg -energy in the command prompt and press Enter In the command prompt type cd %userprofile%/Desktop and press Enter Right click on cmd.exe listed at the top of the Start menu and click Run as administrator Click Start button and type cmd in Search programs and files box