PowerCFG in Windows

You can use Powercfg.exe to get status of you laptop power consumption

Run Below Command in Windows 7  and upward
powercfg -energy -output c:\energy-report.html

You can also use the Powercfg.exe tool to control power settings and configure computers to default to Hibernate or Standby modes.

For Detail Parameter list please navigate to http://technet.microsoft.com/en-us/library/cc748940(v=ws.10).aspx