While researching Connected Standby today (see the below post) I ran across a little tool which is resident on everyone’s battery powered laptop/tablet, but they probably don’t know about it. Battery Report gives you a multitude of stats of how your device is consuming battery power.
Open the Command Prompt (CMD.EXE) and type powercfg –batteryreport. After a few seconds you will see the message below indicating that the report has been saved to your device as an HTML file.
NOTE: If you get an error stating that you need to open the Command Prompt as the Administrator, in Windows 8, right click the tile (or link) and select Run as Administrator from the options at the bottom of the screen. Interestingly, my ASUS Notebook required that I do this, but my Surface RT ran the report without any errors.
Here is what you get. Now we know that Samsung makes the Surface RT batteries. Not sure if like that.
How about recent usage
Or a cool graph
Or how about duration by state and energy drained.
Or maybe Usage History from the day I turned on my Surface RT
Or Battery Life estimates
Notice the 509 hour Connected Standby estimate at the bottom of this chart. That’s what happened when I put my Surface RT in Airplane Mode last night. Now were talkin about battery performance.
I haven’t taken the time to really absorb all of this yet, but I know I will be using this data to analyze Connected Standby, and what it’s not doing for me.