Many of us use our systems at high peaks without caring.As a result the life span of our battery will be reduced i.e if your battery life time is for 2 years it may end up in between 1 & 2 years or even less 1 year.But don't worry guys,in this post i am gonna show you how to increase you battery life by getting rid of some of the warning,Error's or issue by running a complete energy report(i.e power efficiency diagnostic report) by entering some simple commands in CMD. So let's see how to do this. Steps. Note: Before performing this task see that all the running apps,i mean power consuming apps are closed,So that you can get better diagnostic report. 1.Open CMD using System Administrator rights(Recommended). 2.Now in that type " powercfg energy " or " powercfg -energy " and wait for 60 sec as shown below. 3.After 60 sec your report will be saved in to system32. 4.In order to review the report enter " energy-report.html ...