Microsoft Joulemeter calibrates your portable battery

Want to calibrate your batter on your laptop?  Microsoft Joulemeter (.90 mb download) does just that.

From Microsoft Research:

“Joulemeter is a software tool that estimates the power consumption of your computer. It tracks computer resources, such as CPU utilization and screen brightness, and estimates power usage.”

Checklist :

  • Make sure your battery is above 50%
  • Remember to leave your computer idle when this takes place
  • Your screen brightness will change (disable Flux if you have it installed) and turn black
  • Be Patient



Ready to calibrate

Joule Meter Ready


Phase One

Phase 1



Phase Two

Phase 2



Phase Three (Power Model)

Phase 3




About TCAT Shelbyville IT Department

The Tennessee College of Applied Technology - is one of 46 institutions in the Tennessee Board of Regents System, the seventh largest system of higher education in the nation. This system comprises six universities, fourteen community colleges, and twenty-six Applied Technology Colleges.
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