HP Compaq Presario C542EA Notebook PC - Manual (Page 39)

7. Click OK.
8. Click Save changes.
Conserving battery power
● Select low power-use settings through Power Options in Windows Control Panel.
● Turn off wireless and local area network (LAN) connections and exit modem applications when you
are not using them.
● Disconnect external devices that are not plugged into an external power source, when you are not
using them.
● Stop, disable, or remove any external media cards that you are not using.
● Using the fn+f7 and fn+f8 hotkeys to adjust screen brightness as needed.
● If you leave your work, initiate Sleep or Hibernation, or shut down the computer.
Storing a battery
CAUTION To prevent damage to a battery, do not expose it to high temperatures for extended
periods of time.
If a computer will be unused and unplugged from external power for more than 2 weeks, remove the
battery and store it separately.
To prolong the charge of a stored battery, place it in a cool, dry place.
Calibrate a battery before using it if it has been stored for one month or more.
Disposing of a used battery
WARNING! To reduce the risk of fire or burns, do not disassemble, crush, or puncture a battery;
short the external contacts on a battery; or dispose of a battery in fire or water. Do not expose a
battery to temperatures above 60°C (140°F). Replace the battery only with a battery approved
for this computer.
Refer to the Regulatory, Safety and Environmental Notices for battery disposal information.
ENWW Using battery power 33