Lenovo MT 1869 Manuel D’Utilisation

Page de 140
of
 
its
 
capacity.
 
This
 
protects
 
the
 
battery
 
pack
 
from
 
being
 
overcharged
 
or
 
from
 
having
 
a
 
shortened
 
life.
 
To
 
check
 
the
 
status
 
of
 
your
 
battery,
 
move
 
your
 
cursor
 
to
 
the
 
Power
 
Meter
 
icon
 
in
 
the
 
icon
 
tray
 
of
 
the
 
Windows
 
taskbar
 
and
 
wait
 
for
 
a
 
moment
 
(but
 
do
 
not
 
click),
 
and
 
the
 
percentage
 
of
 
battery
 
power
 
remaining
 
is
 
displayed.
 
To
 
get
 
detailed
 
information
 
about
 
the
 
battery,
 
double-click
 
the
 
Power
 
Meter
 
icon.
 
Note:
  
If
 
the
 
battery
 
pack
 
becomes
 
hot,
 
it
 
may
 
not
 
be
 
able
 
to
 
charge.
 
Remove
 
it
 
from
 
the
 
computer
 
and
 
leave
 
it
 
at
 
room
 
temperature
 
for
 
a
 
while.
 
After
 
it
 
cools
 
down,
 
reinstall
 
and
 
recharge
 
it.
 
To
 
check
 
the
 
battery
 
pack,
 
do
 
the
 
following:
 
1.
   
Power
 
off
 
the
 
computer.
 
2.
   
Remove
 
the
 
battery
 
pack
 
and
 
measure
 
the
 
voltage
 
between
 
battery
 
terminals
 
1
 
(+)
 
and
 
5
 
(−).
 
See
 
the
 
following
 
figure:
 
 
5(-)
1(+)
4
3
2
 
 
Terminal
 
Voltage
 
(V
 
dc)
 
1
 
+
 
0
 
to
 
+
 
16.8
 
5
 
Ground
 
(−)
 
  
3.
   
If
 
the
 
voltage
 
is
 
less
 
than
 
+14.4
 
V
 
dc,
 
the
 
battery
 
pack
 
has
 
been
 
discharged.
 
Note:
  
Recharging
 
will
 
take
 
at
 
least
 
3
 
hours,
 
even
 
if
 
the
 
indicator
 
does
 
not
 
turn
 
on.
 
If
 
the
 
voltage
 
is
 
still
 
less
 
than
 
+14.4
 
V
 
dc
 
after
 
recharging,
 
replace
 
the
 
battery.
 
4.
   
If
 
the
 
voltage
 
is
 
more
 
than
 
+14.4
 
V
 
dc,
 
measure
 
the
 
resistance
 
between
 
battery
 
terminals
 
4
 
and
 
5.
 
The
 
resistance
 
must
 
be
 
4
 
to
 
30
 
K
 
.
 
If
 
the
 
resistance
 
is
 
not
 
correct,
 
replace
 
the
 
battery
 
pack.
 
If
 
the
 
resistance
 
is
 
correct,
 
replace
 
the
 
system
 
board.
Checking
 
the
 
backup
 
battery
 
Do
 
the
 
following:
 
1.
   
Power
 
off
 
the
 
computer,
 
and
 
unplug
 
the
 
ac
 
adapter
 
from
 
it.
 
2.
   
Turn
 
the
 
computer
 
upside
 
down.
 
3.
   
Remove
 
the
 
battery
 
pack
 
(see
 
 
4.
   
Remove
 
the
 
backup
 
battery
 
(see
 
 
Checkout
 
guide
 
42
 
MT1866/1867/1869