| -a mode | Selects the mode to use while on AC power. |
| -b mode | Selects the mode to use while on battery power. |
| -i percent | Specifies the CPU idle percent level when adaptive mode should begin to degrade performance to save power. The default is 90% or higher. |
| -n mode | Selects the mode to use normally when the AC line state is unknown. |
| -p ival | Specifies a different polling interval (in milliseconds) for AC line state and system idle levels. The default is 500 ms. |
| -r percent | Specifies the CPU idle percent level where adaptive mode should consider the CPU running and increase performance. The default is 65% or lower. |
| -v | Verbose mode. Messages about power changes will be printed to stdout and powerd will operate in the foreground. |
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