How does this compare to a simple cronjob + shell script?

[aflyingpumpkin]

I am looking for a light weight solution to automatically change my cpu policy to "powersave" when on battery and "performance" when not on battery. I currently have a simple shell script that my root runs every minute with a single if statement to check if I am discharging and set the policy to lowpower, otherwise set the policy to performance.

For my rather simple use case, is this tool better than a cronjob and shell script? If so, what advantages does it provide?

[AdnanHodzic]

I suggest you watch the tool demo video on Youtube, or some of the other youtube videos.

auto-cpufreq has multiple states based on which it'll change frequencies or governors to prologue battery life without compromising resources as also mentioned on Readme. Not just switching states if it's plugged in or not.