24
Important:
If
iPad
is
very
low
on
power,
it
may
display
one
of
the
following
images,
indicating
that
iPad
needs
to
charge
for
up
to
ten
minutes
before
you
can
use
it.
If
iPad
is
extremely
low
on
power,
the
display
may
be
blank
for
up
to
two
minutes
before
one
of
the
low-battery
images
appears.
or
Maximizing
Battery
Life
iPad
a
uses
lithium-ion
battery.
For
information
about
maximizing
the
lifespan
and
battery
life
of
your
iPad,
go
to
www.apple.com/batteries.
Replacing
the
Battery
Rechargeable
batteries
have
a
limited
number
of
charge
cycles
and
may
eventually
need
to
be
replaced.
The
iPad
battery
isn’t
user
replaceable;
it
can
be
replaced
only
by
an
Apple
Authorized
Service
Provider
(AASP).
AASPs
also
recycle
iPad
batteries
according
to
local
laws
and
regulations.
For
information,
go
to
www.apple.com/batteries/replacements.html.
Security
Features
Security
features
help
protect
the
information
on
iPad
from
being
accessed
by
others.
For
example:
Â
You
can
set
up
a
passcode
that
you
must
enter
each
time
you
turn
on
or
wake
up
iPad.
Â
The
Find
My
iPad
feature
helps
you
locate
iPad
if
you
lose
or
misplace
it,
and
lets
you
display
a
message
on
your
iPad
to
help
someone
return
it
to
you.
It
includes
Remote
Wipe,
which
lets
you
erase
all
your
information.
Â
The
Remote
Passcode
Lock
feature
lets
you
remotely
lock
your
iPad
and
create
a
new
or
replacement
4-digit
passcode.
Set
a
passcode:
Choose
Settings
>
General
>
Passcode
Lock.
Enter
a
4-digit
passcode,
then
enter
the
passcode
again
to
verify
it.
iPad
then
requires
you
to
enter
the
passcode
to
unlock
it
or
to
display
the
passcode
lock
settings.
For
more
information,
see
“Passcode
Lock”
on
page
121.
Note:
Find
My
iPad,
including
Remote
Wipe
and
Remote
Passcode
Lock,
requires
a
MobileMe
account
and
is
not
available
in
all
regions.
MobileMe
is
an
online
service,
available
by
subscription.
For
more
information,
go
to
www.apple.com/mobileme.
Chapter
1
At
a
Glance