Lenovo G450/G550 User Guide V2.0

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Chapter 6. Upgrading and replacing devices
Replacing the battery - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
 To replace the battery
1 Turn off the computer, or enter hibernation mode. Disconnect the AC adapter and all cables
from the computer.
2 Close the computer display, and turn the computer over.
3 Unlock the manual battery latch . Hold the spring-loaded battery latch in the unlocked
position , remove the battery pack in the direction shown by the arrow .
4 Install a fully charged battery.
5 Slide the manual battery latch to the locked position.
6 Turn the computer over again. Connect the AC adapter and the cables to the computer again.
Notes:
• The illustrations used in this chapter are of the Lenovo G550, unless otherwise stated.
• The following steps about upgrading and replacing devices are the same for the G450 and G550.
Note: Use only the battery provided by Lenovo. Any other battery could ignite or explode.
Note: If you are using an ExpressCard device, the computer might not be able to enter hibernation mode. If
this happens, turn off the computer.
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Lenovo G450-550 UG V2.0_en.book Page 30 Wednesday, September 2, 2009 9:29 AM