powertop — Optimize battery power usage. More information: <https://github.com/fenrus75/powertop>.

Calibrate power usage measurements

sudo powertop --calibrate

Generate HTML power usage report in the current directory

sudo powertop --html={{power_report.html}}

Tune to optimal settings

sudo powertop --auto-tune

Generate a report for a specified number of seconds (instead of 20 by default)

sudo powertop --time={{5}}