Quote:
Originally Posted by wallcraft
A short press of the power button just disables the keys, I would not expect this to save any extra power.
A long press turns the device off, but the resting power load is so low that this isn't normally necessary.
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Indeed, depending on how frequently you take some time to read, switching the unit on and off may use more energy than just leaving it lying around: The boot process is bound to use up some energy (CPU activity, several screen redraws), and the sleep mode seems to be rather power-efficient. So my gut feeling is that if you switch the unit on and off a couple times per day, just leaving it on is probably the better deal, although I'd love to see someone with more hardware knowledge than me do some actual measurements.