Owner's Manual
I
Batteries
Zinc-Air
Batteries
Use
commonly-available
#10
zinc-air
hearing
aid
batteries
.
They
are
easy
to
find
in
pharmacies
,
online,
and
at
various
retail
locations.
•
Zinc-air
batteries
have
a
long
shelf
life
,
but
once
the
tab
is
removed,
battery
life
is
about
9
days
for
continuous
operation.
•
Battery
life
is
about
2
weeks
if
the
devices
are
turned
off
after
each
use
.
•
Once
the
tab
is
removed
,
zinc-air
batteries
may
self-
discharge
in
about
4
weeks
whether
used
or
not.
•
The
discharge
rate
varies
with
temperature
and
humidity
.
• It
is
sometimes
possible
to
prolong
the
life
of
a
battery
by
replacing
the tab
over
the
air
holes,
but
results
vary.
low
Banerv
warning
LOBAT
™: A
ticking
sound
becomes
faster
and
louder,
like
the
sound
of
a
motorboat
when
the
battery
is
about
to
die
.
After
the
warning
sound
first
becomes
audible
, it
may
be
a
few
hours
before
the
battery
dies.
Performance
and
protection
do
not
change
while
LOBAT
is
sounding
.
9