Sony VGN S400 Series Laptop User Manual


 
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Troubleshooting
Battery
How do I know when the battery is charged?
To determine the remaining battery charge, see Charging the Battery Pack (page 27)
When is the computer using AC power?
When the computer is directly connected to the AC adapter, it uses AC power, even if a battery is installed.
When should I recharge the battery?
When the battery level falls below 10 percent.
When both the battery and power indicators blink.
When you have not used the battery for a long time.
When should I replace the battery?
If the battery power is still low after charging it, the battery may be reaching the end of its life and should be replaced.
Should I be concerned that the installed battery is warm?
No, it is normal for the battery to be warm when it is powering the computer.
Can my computer enter Hibernate mode while using battery power?
Your computer can enter Hibernate mode while using battery power, but some software programs and peripheral devices
prevent the system from entering Hibernate mode. If you are using a program that prevents the system from entering Hibernate
mode, save your data frequently to avoid losing data. See Using Hibernate Mode (page 112) for information on how you can
manually activate Hibernate mode.