Some features of the player takes a higher battery power, thus affecting the length of playtime. Here are some tips to conserve battery power of the player. * Adjust the brightness of the screen as low as possible * If the player offers FullSound feature, disable it * Set a short time for the backlight timer >* This shortens the idle time before the display is automatically switched off * Select [None] for screensaver * If the player offers Demo mode, disable it. (The Demo mode is under [Settings]>[Display setting]>[Screensaver] Menu)