The display brightness is decreased to save battery life when you disconnect AC power. To
increase display brightness, use the
You can keep a battery in the device or in storage, depending on how you work. Keeping the battery in
the device whenever the device is plugged into AC power charges the battery and also protects your
work in case of a power outage. However, a battery in the device slowly discharges when the device is
off and unplugged from external power.
replacement battery provided by HP, or a compatible battery purchased from HP.
Device battery life varies, depending on power management settings, programs running on the device,
display brightness, external devices connected to the device, and other factors.
Displaying the remaining battery charge
Double-click the Power Meter icon in the notification area, at the far right of the taskbar.
– or –
Select Start > Control Panel > Performance and Maintenance > Power Options > Power
Most charge indicators report battery status as both a percentage and as the number of minutes of
The percentage indicates the approximate amount of charge remaining in the battery.
The time indicates the approximate running time remaining on the battery if the battery continues
to provide power at the current level. For example, the time remaining will decrease when a DVD
is playing and will increase when a DVD stops playing.
When a battery is charging, a lightning bolt icon may be superimposed over the battery icon on the
Power Meter screen.
Inserting or removing the battery
loss of information, save your work and initiate Hibernation or shut down the device through Windows
before removing the battery.
To insert the battery:
Disconnect all external devices.
If the device is connected to AC power, unplug the power cord from the AC outlet.
Turn the device upside down on a flat surface.
To reduce potential safety issues, use only the battery provided with the device, a
Removing a battery that is the sole power source may cause loss of information. To prevent
hotkey or reconnect the AC adapter.
Using battery power