Well I charge my Sansa every night and use it like the following each day:
-
Power up to check time
-
Power down
-
Power up and listens to songs
-
Power down
-
Power up to show friends how cool it looks when you turn it off
-
Same thing repeated
*10:30 AM*
-
Power down
-
Power up to show friends in history class
-
Does same thing in English
-
Repeats in Math
-
Repeats in Science
-
Listens to on bus
*2:55 PM*
And battery is 68-72% each day.