Lenovo ThinkCentre E51 User Manual - Page 43

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Refer to "Lithium battery notice" on page x for information about replacing and disposing of the battery. To change the battery: 1. Turn off the computer and all attached devices. 2. Unplug the power cord and remove the cover. See "Identifying parts on the system board" on page 11. 3. Locate the battery. See "Identifying parts on the system board" on page 11. 4. If necessary, remove any adapters that impede access to the battery. See "Installing adapters" on page 17 for more information. 5. Remove the old battery. 6. Install the new battery. 7. Replace any adapters that were removed to gain access to the battery. See "Installing adapters" on page 17 for instructions for replacing adapters. 8. Replace the cover, and plug in the power cord. See "Replacing the cover and connecting the cables" on page 29. Note: When the computer is turned on for the first time after battery replacement, an error message might be displayed. This is normal after replacing the battery. Chapter 1. Installing options 27

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Refer
to
“Lithium
battery
notice”
on
page
x
for
information
about
replacing
and
disposing
of
the
battery.
To
change
the
battery:
1.
Turn
off
the
computer
and
all
attached
devices.
2.
Unplug
the
power
cord
and
remove
the
cover.
See
“Identifying
parts
on
the
system
board”
on
page
11.
3.
Locate
the
battery.
See
“Identifying
parts
on
the
system
board”
on
page
11.
4.
If
necessary,
remove
any
adapters
that
impede
access
to
the
battery.
See
“Installing
adapters”
on
page
17
for
more
information.
5.
Remove
the
old
battery.
6.
Install
the
new
battery.
7.
Replace
any
adapters
that
were
removed
to
gain
access
to
the
battery.
See
“Installing
adapters”
on
page
17
for
instructions
for
replacing
adapters.
8.
Replace
the
cover,
and
plug
in
the
power
cord.
See
“Replacing
the
cover
and
connecting
the
cables”
on
page
29.
Note:
When
the
computer
is
turned
on
for
the
first
time
after
battery
replacement,
an
error
message
might
be
displayed.
This
is
normal
after
replacing
the
battery.
Chapter
1.
Installing
options
27