The display settings on your Zune let you adjust brightness and backlight (which can affect battery power), watch videos from your Zune on your TV, and reset the background image.
Adjust brightness
Select settings, display, brightness.
Choose low, medium, or high.
Less brightness helps the battery last longer between charges.
Adjust backlight duration
Select settings, display, backlight.
Choose how long you want the backlight to stay on.
Shorter backlight times help the battery last longer between charges.
Reset the background image
Select settings, display, background, reset to default.