Originally Posted by Dopedangel
I thought so but I read somewhere on the forum that your battery looses charge when in keyboard lock so would be better to turn the device off completely if you are not going to use it for a few days
so I assumed the battery was being used maybe I misunderstood
The battery is used (very slowly) in keyboard lock mode, but not by the screen. You could turn the device off completely and still retain the screen image; as I said before, an eInk screen does not have to be powered in order to display a static image; when power is removed it continues to display whatever image it's currently showing.