Find out How Healthy Your Battery is on Your Laptop

Find out How Healthy Your Battery is on Your Laptop Windows 7 has a feature through which we can find out exactly how much battery you are actually getting from your Laptop battery, i.e. its efficiency, maximum charge potential. Step1:Open elevated command prompt by typing "cmd" in your start menu & opening it as administrator Step2:Type “powercfg -energy” into the command prompt & press Enter.The command enables tracing for 60 seconds & would collect all the data after observing the system behavior.After analysis it would generate a report Step3:The energy report is generated in HTML format in the directory shown in the command prompt.Cmd Prompt Address\energy-report.html by default. This shows the battery ID, Manufacturer name, Chemistry, Design capacity and most importantly the last full charge. For Example Dell Studio 15 battery has design capacity of 5200 and now it‟s giving max full charge of 3565 that counts its efficiency to around 70% it has degraded around 30% in 6 months.