How to achieve longest possible battery life

lme@

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The atacontrol and xset commands are good candidates for adding to /etc/devd.conf.
Everytime you insert or remove the power cable from your notebook, devd gets an ACPI message. (0x00 and 0x01 IIRC). So if you plug-in the cable you can run # atacontrol spindown ad0 300 and vice versa if you remove the cable.
 
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