Samsung NP-RC418H User Manual page 78

Using the Battery Calibration
Function
When charging/discharging the battery
repeatedly for a short time only, the battery
usage 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 the
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 computer.
2
Restart your computer and press the
F2 button when the Samsung logo
appears, to start the BIOS Setup.
3
Move to the Boot > Smart Battery
Calibration item using the direction
XXXXXXXX
keys and press <Enter>.
4
Highlight Yes in the Battery Calibration
Confirmation window and press
<Enter>.
The Battery Calibration function is
activated and the battery is forcefully
discharged. To stop the operation, press
the (Esc) button.
This operation requires 3~5 hours
depending on the battery capacity and
the remaining battery charge.