Samsung NV30CH0Q0B - Manual (Page 80)

System Management 67
Monitoring the Battery Charge
To monitor in control panel
Click Start > Control Panel > Performance and Management > Power Options >
Power Meter tab. Power source and remaining battery charge are displayed.
Using the battery
Battery is an expendable supply, so when you use it for a long time, the
capacity/battery life is shortened. If the battery life is reduced to under half of
the initial time, we recommend that you purchase a new battery to use.
Battery Warning
You will hear an alarm when the remaining battery charge is under 10%.
Connect the power cable or turn off the computer and install a fully charged
battery.
When the remaining battery charge is under 3%, the computer automatically
saves current work and turns off. This may be different according to the
settings in Control Panel > Performance and Maintenance > Power
Options > Alarms tab.
If the remaining battery level is less than 5% when you turned on the
system
The system will shut down during the start up process to prevent any loss of
data. Connect the AC adapter, and then turn the system on.
Power supply status
Remaining battery charge