HP Pavilion g4-2149se Notebook PC - Manual (Page 43)

Charging a battery
WARNING! Do not charge the computer battery while you are onboard aircraft.
The battery charges whenever the computer is plugged into external power through an AC adapter or
an optional power adapter.
The battery charges whether the computer is off or in use, but it charges faster when the computer is
off.
Charging may take longer if a battery is new, has been unused for 2 weeks or more, or is much
warmer or cooler than room temperature.
To prolong battery life and optimize the accuracy of battery charge displays, follow these
recommendations:
● If you are charging a new battery, charge it fully before turning on the computer.
NOTE: If the computer is on while the battery is charging, the battery meter in the notification
area may show 100 percent charge before the battery is fully charged.
● Allow the battery to discharge below 5 percent of a full charge through normal use before
charging it.
● If the battery has been unused for one month or more, calibrate the battery instead of simply
charging it.
Maximizing battery life
To maximize battery life:
1. Select Computer > Control Center > Power Management.
2. On the On Battery Power tab:
● Adjust the slider to the right of Put computer to sleep when inactive for to 30 minutes.
● Select the Suspend or Hibernate option to the right of When laptop lid is closed.
● Select the Hibernate or Shutdown option to the right of When battery power is critically
low.
3. Adjust the slider to the right of Put display to sleep when inactive for to 15 minutes, and select
the check box next to Reduce backlight brightness.
4. Click Close.
Managing low battery levels
The information in this section describes the alerts and system responses set at the factory. Some
low-battery alerts and system responses can be changed using Power Management in Control
Center. Preferences set using Power Management do not affect lights.
Running on battery power 33