Sony PCG-NV170 - Manual (Page 44)

Using Power Saving Modes
When you use a battery as the source of power for your computer, you can take advantage of power management settings
to conserve battery life. In addition to the normal operating mode, which allows you to turn off specific devices, your
computer has two distinct power saving modes: Standby and Hibernate. When using battery power, be aware that the
computer automatically enters Hibernate mode when the remaining battery charge drops below 5 percent, regardless of
the power management setting you select.
If the battery level falls below 10 percent, you should either attach the AC adapter to recharge the battery or shut
down your computer and insert a fully charged battery.
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