Fujitsu LifeBook E751 User Manual page 103

Problem
Your LIFEBOOK notebook
turns off all by itself.
(continued)
Your LIFEBOOK notebook
will not work on battery
alone.
The batteries seem to 
discharge too quickly.
Possible Cause Possible Solutions
You are operating on Install a power adapter and then push the Power/Sus-
battery power and pend/Resume button. See "Power Sources" on page 44.
ignored a low battery
alarm until battery is
dead and system is in
Dead Battery Suspend
mode.
Your power adapter has Make sure the adapter is plugged in and the outlet has power.
failed or lost its power.
No battery is installed. Install a charged battery.
Installed battery is dead. Replace the battery with a charged one or install a power adapter.
The batteries are Verify that the batteries are properly connected by re-installing
improperly installed. them.
Your installed batteries Verify the condition of the batteries using the Status Indicator panel
are faulty. and replace or remove any batteries that are shorted. See "Status
Indicator Panel" on page 22.
You are running an Use both the primary battery and an optional second battery
and/or use a power adapter for this application when at all 
application that uses a
lot of power. possible.
The power savings fea- Check the Power Options menu settings and adjust according to
tures may be disabled. your operating needs.
The brightness is turned Turn down the brightness adjustment. The higher the brightness
all the way up. the more power your display uses.
The batteries are old. Replace the batteries.
Batteries were exposed Replace the batteries.
to high temperatures.
97 - Troubleshooting Your LIFEBOOK