Laptop Load Cycle Bug Finally Fixed! Oct 9, 2008, 12 :35 UTC (0 Talkback[s]) (3945 reads)
"This is for safety reasons: it is assumed
that the laptop is working on battery when it is being carried around,
and it is much safer to park the heads in such situations. Also, we did
not want to increase the power usage while in battery mode! This does
mean that the drive lifetime still becomes shorter..."