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BATTERY
PERFORMANCE
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1.
New
batteries
Between manufacture and first use, all batteries
exhibit some drain. Therefore, care shou
ld
be taken
to purchase the newest (and freshest) ones pos-
sible.
To
help you do this, some manufacturers
stamp the date of manufacture on the bottom of
each battery. Ask your camera dealer for assistance
in
interpreting the codes.
2. Temperature
Battery life ratings are based
on
operation at around
20°C
(68°F). At other temperatures, battery life
is
shortened. Spare batteries should therefore be kept
available if operation
in
low temperatures
in
antici-
pated.
3.
Continuous use
Batteries are drained much more quickly by con-
tinuous use then by intermittent use.
4. Storage
When not
in
use, the batteries should be removed
from the power supply to prevent leakage which
may damage the unit.
To
minimize drain during the
period of disuse, store the batteries
in
a cool, dry
place below 20°C (68°F).
5. Battery brands
Do not mix brands of batteries or use batteries with
different model numbers. Also, avoid mixing new
and old batteries since proper performance will not
be obtained and battery leakage may occur.
6.
Disposal
Do not dispose of batteries by burning.
Al
so,
for
safety's sake, never disassemble batteries.
7.
Polarity
When installing batteries, observe the voltage polar-
ities carefu
ll
y.
Reversal of the positive
(+)
and nega-
tive (- ) terminals will result
in
leakage. If leakage
should
occur
, clean the SB-140 carefully or take it to
an authorized Nikon dealer or service center.
8. NiCd batteries
In
comparison with regular batteries, NiCd batteries
provide faster recycling and higher efficiency at low
temperature
s.
However, the recycling time and the
number of flashes per battery set depend upon the
age of the batteries, their charge
s,
and their
capacitie
s.
o Do not continue to use NiCd batteries after th
ey
are exhausted.
Co
ntinued use may reduce their life span or cause leakage.
o Before char
ging,
thoroughly read the battery and battery charger
instructions.
o Charging should only be done for the designated number
of
hours
on
a battery charger recommended by the battery manufacturer.
Excessive charging may cause battery detefloration.
o Charging should only be done
in
temperatures between
SOC
141°F) and
3SoC
19S0F).
Never charge batteries while they are still
hot from
use.
o Never attempt to charge NiCd batteries that are incorrectly
installed
in
the battery charger.
o
The
charging capacity of NiCd batteries may be shortened after a
long period of storage. If this occurs, discharge and recharge them
several times.
o
if
working time
is
markedly reduced even after they have been
correctly charged, replace them with
a fresh
set.
o Do not mix new
and
old NiCd batteries.
•
Do
not use NiCd batteries which have been charged for different
lengths
of
time.