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2-6 User’s Manual
L550/L550D/L555/L555D
Battery safety lock Slide this latch into its “Unlock” position in order
to release the battery pack and prepare for
removal.
Battery pack The battery pack provides power to the computer
when the AC adaptor is not connected. For more
detailed information on the use and operation of
the battery pack please refer to Chapter 6, Power
and Power-up Modes.
Battery release latch Slide and hold this latch into its “Unlock” position
in order to release the battery pack.
For more detailed information on removing the
battery pack please refer to Chapter 6, Power
and Power-up Modes.
Cooling vents The computer’s cooling vents help keep the
processor from overheating.
Hard disk drive
The hard disk drive contains the main storage for
the computer. Disk size varies depending on the
model purchased.
Memory module
slots
The memory module slots are located here.
The memory module slots allow for the
installation, replacement and removal of
additional memory modules. Please refer to the
Additional memory module section in Chapter 8,
Optional Devices for more information.
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