Broadcom Corporation BRCM1020 Manuel D’Utilisation

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Using a Battery
For information on how to use the Dell QuickSet Power Management 
wizard, right-click the QuickSet icon in the notification area, click Help, 
and then select Power Management.
To use Windows Power Options, do one of the following:
Click Start 
→ Control Panel→ Hardware and Sound→ Power 
Options, and then select a power plan in the Select a power plan 
window.
or
Click the 
 icon in the notification area, click Power Options, and 
then select a plan in the Select a power plan window.
Using the Sleep Power State
Rather than shutting down your portable computer, use the Sleep power state 
to conserve power. Sleep automatically saves your work to your hard drive, 
and then returns you to your previous work session without restarting your 
computer. 
 
NOTICE: 
If your computer loses AC and battery power while in Sleep state, it may 
lose data.
To enter Sleep state:
Click Start 
, click 
, and then click Sleep.
or
Depending on how you set the power management options in the 
Windows Power Options or Dell QuickSet, use one of the following 
methods:
Press the power button.
Close the display.
Press <Fn><Esc>.
To exit Sleep state, press the power button.
Charging the Battery
 
NOTE: 
Charge time is longer with the computer turned on. You can leave the 
battery in the computer for as long as you like. The battery’s internal circuitry 
prevents the battery from overcharging.