. . . "Probably half the battery is used just by the display in normal use, and if other non-CPU components take 10-20% or so, you would have to reduce the CPU power consumption by nearly 100% (i.e. to 0) to get near a total system power reduction of 30-50%.edit: Now, maybe they are measuring battery life improvement at 100% CPU load, when the CPU is a much larger part of the total power draw, but during" .