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If the optional Quick Charger is available, use it to charge the over-discharged battery pack.
If the battery pack cannot be fully charged in 24 hours, call Lenovo Customer Service Center to have
it serviced.
• Problem: Your computer shuts down before the battery status indicator shows empty, -or- Your
computer operates after the battery status indicator shows empty.
Solution: Discharge and recharge the battery pack.
• Problem: The operating time for a fully charged battery pack is short.
Solution: Discharge and recharge the battery pack. If your battery's operating time is still short, call
Lenovo Customer Service Center to have it serviced.
• Problem: The computer does not operate with a fully charged battery pack.
Solution: The surge protector in the battery pack might be active. Turn off the computer for one minute to
reset the protector; then turn on the computer again.
• Problem: The battery pack cannot be charged.
Solution: You cannot charge the battery when it is too hot. Turn off the computer and allow it to cool to
room temperature. If it still cannot be charged, call Lenovo Customer Service Center to have it serviced.
AC power adapter problems
• Problem: The ac power adapter is connected to the computer and the working electrical outlet, but the
power adapter (power plug) icon is not displayed in the task bar. Also the ac power indicator does
not light up.
Solution: Do as follows:
1. Make sure that the connection of the ac power adapter is correct. For connecting the ac power
adapter, see the Setup Instructions manual included in the shipping contents of your computer.
2. If the above step is correct, turn off the computer, then disconnect the ac power adapter.
3. Reconnect the ac power adapter, then turn on the computer.
4. If the power adapter icon still does not appear on the task bar and the ac power indicator does not
light up, have the ac power adapter and your computer serviced.
Note: To display the power adapter (power plug) icon, click Show hidden icons in the task bar.
Power problems
Print these instructions now and keep it with your computer for reference later.
If your computer is getting no power at all, check the following items:
1. Verify the power switch. Refer to System-status indicators. The power switch is illuminated whenever
the computer is on.
2. Check all power connections. Remove any power strips and surge protectors to connect the ac power
adapter directly to the ac power outlet.
3. Inspect the ac power adapter. Check for any physical damage, and make sure that the power cable is
rmly attached to the adapter brick and the computer.
4. Verify the ac power source is working by attaching another device to the outlet.
5. Remove all devices and then test for system power with minimal devices attached.
a. Disconnect the ac power adapter and all cables from the computer.
b. Close the computer display, and turn the computer over.
Chapter 10. Troubleshooting computer problems 137