I have not thought about it this way, you are totally correct. I keep on thinking this is a pda, and it HAS to last at least 1 day to be called a pda, so one plug it in when home at night. That was what I am thinking with the N900. If you compare to a dedicated stand alone gps, you are right, the gps I have barely last 3 - 4 hr when NOT plug in. The bottom line, I can always plug it in the car. I just want to stress the battery and see how it goes - continuous use, no wifi/video/audio, only gps/eCoach - 5 solid hours, and it is called good. From this, if it can cut down on the brightness, say the built-in night mode, you should gain another 30 min or so. PR1.1, nice upgrade, Nokia.

bun