Battery Calibration - Samsung NP-R55 User Manual

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Maximum Performance Mode : This mode is appropriate for conditions that
require maximum system performance.Therefore, the battery usage time may
be reduced in this mode.
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Custom Mode : In this mode, a user can configure a detailed configuration to
save the battery usage time. You can adjust the LCD brightness, the system
standby time, the screen color quality, and the graphic mode values.
Power Saving Effect
This shows the relative battery use time for each power mode. The more
effective the power saving, the longer the graph will appear.
When Running a Game or Multimedia Application
A game or multimedia application may not work smoothly in Maximum Battery
Saving Mode. Using this is recommended when the AC adapter is connected
or in Normal or higher modes.
Turning Off Unnecessary Devices
Turning off unnecessary devices extends the battery use time.
Select the Start > Control Panel > Performance and Maintenance > System >
Hardware tab and click Device Manager. Right-click a device you are not using, and
select 'Disable' (e.g. wireless LAN, 1394 etc.)

Battery Calibration

If you charge/discharge the battery repeatedly for only a short time, the battery use
time may be reduced by the difference between the actual battery charge and the
remaining charge display. In this case, the actual battery charge and the remaining
charge display will be same by discharging the battery completely using the Battery
Calibration function, and then recharging it again.
1. Disconnect the AC power adapter after turning off the system.
2. Restart your computer and press <F2> to enter BIOS setup.
3. Using the arrow keys, highlight Smart Battery Calibration in the Boot menu. The
Battery Calibration function is activated and the battery is discharged forcibly.
This operation requires 3~5 hours depending on the battery capacity and the
remaining battery charge.
4. When the calibration process is complete, recharge the battery fully.
System Management 111