Asus R2E - Manual (Page 27)

UltraMobilePC
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NOTE: You will be warned when battery power is low. If you continue to ignore the
low battery warnings, the UltraMobilePC eventually enters suspend mode (Windows
default uses STR).
WARNING! Suspend-to-RAM (STR) does not last long when the battery power is
depleted. Suspend-to-Disk (STD) is not the same as power OFF. STD requires a small
amount of power and will fail if no power is available due to complete battery deple-
tion or no power supply (e.g. removing both the power adapter and battery pack).
Note: Screen captures shown here are examples only and may not reflect
what you see in your system.
Checking Battery Power
The battery system implements the Smart Battery standard under the Windows environment,
which allows the battery to accurately report the amount of charge left in the battery. A fully-
charged battery pack provides the UltraMobilePC a few hours of working power. But the
actual figure varies depending on how you use the power saving features, your general work
habits, the CPU, system memory size, and the size of the display panel.
Left-click the battery icon
Cursor over the battery icon without
power adapter.
Cursor over the battery icon with
power adapter.
Right-click the battery icon