Originally Posted by ardeegee
This thing must be topping it's battery up every time I plug it into the USB port to shuffle books around, because I've been using it hours per day every day for the past two weeks that I've had it, and the battery charge indicator hasn't once dropped below full!
I put all my books on last week, and charged up the device to full. In that week I have Started and finished reading The Two Towers, and the battery is still indicating full.
So, either Sony are making very conservative marketing claims, OR the battery guage is not calibrated properly, and will go from full to empty in a few page turns.
Time will tell.