
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.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 battery 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 with administrator privileges.2. Type “powercfg –energy” into the command prompt & press...