Troubleshooting 8-5Battery ProblemsThe battery does not charge (Battery Charge indicator does not lightorange).z Make sure that the AC adapter is properly connected.z Make sure that the battery is not too hot or cold. Allow time for thebattery pack to return to room temperature.z Make sure that the battery pack is installed correctly.z Make sure that the battery terminals are clean.The operating time of a fully charged battery becomes shorter.z If you often partially recharge and discharge, the battery might not becharged to its full potential. Initialize the battery to solve the problem.(See “Initializing the Battery Pack” in Chapter 3 for instructions.)The battery operating time indicated by the battery meter does notmatch the actual operating time.z The actual operating time can be different from the estimated time,depending on how you are using the computer. If the actual operatingtime is much less than the estimated time, initialize the battery. (See“Initializing the Battery Pack” in Chapter 3 for instructions.)Display ProblemsNothing appears on the screen.z During operation, the screen may automatically turn off as a result ofpower management. Press any key to see if the screen comes back.z The brightness level might be too low. Increase brightness bypressing the Fn+F6 hot key.z The display output might be set to an external device. To switch thedisplay back to the LCD, press the Fn+F9 hot key or change thedisplay through the settings in Display Properties.