39
To
protect
the
battery
and
prevent
a
decline
in
performance,
do
not
charge
it
continuously
for
more
than
24
hours.
• This is a lithium ion battery pack so there is no need to completely use
or discharge it before recharging.
• It
can
be
charged
at
any
charge
state.
• It takes approximately 2 hours 30 minutes to bring a depleted battery
pack to a full charge state (based on standard Canon testing criteria).
• Charge
it
within
a
temperature
range
of
5
to
40
°
C
(41
to
104
°
F).
• The
charging
time
varies
according
to
the
ambient
temperature
and
charge
state.
• You are advised to charge the battery on the day of use, or one day
before, to ensure a full charge.
• Even
charged
battery
packs
continue
to
discharge
naturally.
• The battery life should be considered over when the usable time is
severely limited even after the prescribed charging time.
• Replace
it
with
a
new
battery.
Battery Handling