Lenovo Portable Computer User Guide
is
fully
discharged.
Setp
3.
Do
the
step
1
and
2
for
another
two
times.
The
charging
time
must
be
longer
in
the
second
and
third
time
to
ensure
the
battery
reaches
the
maximum
capacity.
After
the
aforesaid
steps,
you
can
use
the
battery
normally.
1.4.2
Using
battery
When
your
computer
does
not
connect
to
an
external
power
source,
the
battery
will
automatically
supply
the
power
for
your
computer.
The
actual
operating
time
varies
with
different
factors,
such
as
LCD
brightness,
system
power
management
property,
application,
computer
peripheral
usage,
and
battery
accumulative
using
time,
etc.
You
can
plug
the
adaptor
into
Power
Jack
to
charge
the
battery.
The
state
of
battery
charging
shows
through
the
battery
indicator.
Hint:
No
matter
whether
the
battery
is
installed
in
the
computer
or
not,
it
always
performs
self
‐
discharge.
(About
1%
a
day)
If
the
battery
has
not
been
used
for
a
long
time,
it
might
have
no
power
because
of
self
‐
discharge.
This
is
the
inherent
feature
of
lithium
‐
ion
battery.
You
should
use
the
external
power
source
or
recharge
the
battery.
If
you
still
cannot
turn
on
the
computer
(the
battery
indicator
also
doesn’t
flash),
it
means
the
battery
is
in
self
‐
protection
state.
Charge
the
battery
for
2~4
hours
to
activate
the
battery.
Turn
on
the
computer
again
when
the
battery
indicator
flashes.
Hint:
If
you
won’t
use
the
computer
for
a
long
time,
remove
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