Windows has a feature through which we can find out exactly how much battery you are actually getting from your Laptop battery, i.e. , maximum charge potential, its efficiency
It‟s a well-known fact that as the age of lithium battery increases its charging capacity decreases and it won't charge to its full potential as when it's new. We can find out exactly how much the batteries of laptop is giving now. We can use the powercfg -energy to find out how health your battery is.
1. Open elevated command prompt by typing "cmd" in your start menu & opening it
2. Type “powercfg –energy” into the command prompt & press Enter.
3. The command enables tracing for 60 seconds & would collect all the data after observing the system behavior.
5. The energy report is generated in HTML format in the directory shown in the command prompt.
Cmd Prompt C:\energy-report.html
6. In the HTML file, scroll to the end till you get information
This shows the battery ID, Manufacturer names,Serial number, Chemistry, Design capacity and most importantly the last full charge.
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