Resolving a low battery level

CAUTION: To reduce the risk of losing information when the computer reaches a critical battery level, do not restore power until the power lights turn off.

Resolving a low battery level when external power is available

▲Connect one of the following devices:

●AC adapter

●Optional docking device

●Optional power adapter

Resolving a low battery level when a charged battery is available

1.Turn off the computer.

2.Remove the discharged battery, and then insert a charged battery.

3.Turn on the computer.

Resolving a low battery level when no power source is available

▲Save your work and shut down the computer.

Conserving battery power

●Select low power-use settings through Power Options.

●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.

●Use the fn+f9 and fn+f10 hotkeys to adjust screen brightness as needed.

●If you leave your work, initiate Standby 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.

Using battery power 41