Chapter 9. Troubleshooting Computer Problems; Troubleshooting; Battery And Power Problems - Lenovo B475e User Manual

Chapter 9. Troubleshooting computer problems

This chapter provides information on what to do if you experience a problem with your computer.
Notice for users in U.S.A
• If your product is not working correctly, DO NOT RETURN IT TO THE STORE.
• For technical assistance, contact a Lenovo support specialist 24 hours a day by calling toll free 1-877-4 LENOVO
(1-877-453-6686).
• Additionally, you can find support information and updates on the Lenovo Web site located at
http://www.lenovo.com/support.

Troubleshooting

To make sure that your computer has the features that are introduced in the following sections, consult the
online help or the list shipped with your computer.

Battery and power problems

This topic contains instructions on troubleshooting battery and power problems.
Battery problems
Print these instructions now and keep it with your computer for reference later.
The battery pack cannot be fully charged in the standard charge time when the computer is powered
off.
The battery pack might be over-discharged. Do the following:
1. Turn off the computer.
2. Make sure that the over-discharged battery pack is in the computer.
3. Connect the ac power adapter to the computer and let it charge.
If a quick charger is available, use it to charge the over-discharged battery pack.
If the battery pack cannot be fully charged in 24 hours, use a new battery pack.
Your computer shuts down before the battery status indicator shows empty, or your computer
operates after the battery status indicator shows empty.
Discharge and recharge the battery pack.
The operating time for a fully charged battery pack is short.
Discharge and recharge the battery pack. If your battery operating time is still short, use a new battery pack.
The computer does not operate with a fully charged battery pack.
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.
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