30
Information
from
the
World
Health
Organization
The
World
Health
Organization
has
stated
that
present
scientific
information
does
not
indicate
the
need
for
any
special
precautions
for
the
use
of
SAR
Data
mobile
devices.
They
note
that
if
you
want
to
reduce
your
exposure
then
you
can
do
so
by
limiting
the
length
of
calls
or
using
a
“hands
‐
free”
device
to
keep
the
mobile
phone
away
from
the
head
and
body.
Improvement
of
this
device
may
cause
a
little
change
of
the
SAR
data.
However,
the
device
is
designed
in
accordance
with
the
guidelines
in
any
case.
Battery
Tips
The
machine
is
provided
by
the
reusable
rechargeable
battery.
The
new
battery
only
can
by
two
or
three
times
full
charge
and
discharge
cycle
to
achieve
optimum
performance.
Battery
can
be
recharged
many
times
for
repeated
use,
but
it
will
eventually
be
exhausted.
When
the
talk
and
standby
time
is
significantly
shorter
than
usual,
then
need
to
replace
a
new
battery.
Use
the
battery
the
handset
manufacturers
approved
only,
and
use
the
authorized
charger
for
the
battery
charge
only.
Cut
off
the
power
supply
when
do
not
use
the
charger.
Do
not
connect
a
battery
to
a
charger
more
than
one
week,
the
long
time
charge
will
affect
battery
life.
The
battery
storage
for
too
long
would
affect
the
results.
And
the
battery
will
automatically
discharge
as
long
time
unused.
Do
not
use
a
damaged
battery
or
charger.
Never
expose
batteries
to
temperatures
below
‐
10°C
(14°F)
or
above
45°C
(113°F).
Always
take
your
phone
with
you
when
you
leave
your
vehicle.
It
is
normal
for
batteries
to
gradually
wear
down
and
require
longer
charging
times.
