Nikon Speedlight SB-16 Instruction Manual page 68

OPTIMUM BATTERY PERFORMANCE-------
New batteries. Between manufacturing and first use, all
batteries exhibit some drain. Therefore , care should be
taken to purchase the newest (and freshest) ones possi-
ble. 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 .
Temperature. Battery life ratings are based on operation
at around 25°C (7r F), At other temperatures, battery
life is shortened. Spare batteries should therefore be
kept available if operation in low temperatures is antici-
pated.
Continuous use. Batteries are drained much more
quickly by continuous use than by intermittent use.
Storage. When not in use, the batteries should be re-
moved to prevent damage from leakage. To minimize
drain during the period of disuse, store the batteries in a
cool , dry place below 20°C (68°F),
68
Battery brands. Do not mix brands of batteries, nor use
batteries with different model numbers. Also , avoid mix-
ing new and old batteries since proper performance will
no be obtained and battery leakage may occur.
Disposal. Do not dispose of batteries by burning . Also,
for safety's sake , never disassemble batteries.
Polarity. When installing batteries, observe the voltage
polarities carefully. Reversal of the positive (+) and neg-
ative (-) termina ls will result in leakage. If leakage should
occur, take the SB-16 to your dealer.
NiCd batteries. In comparison with regular batteries ,
NiCd batteries provide faster recycling time and better
efficiency at low temperatures . However, note that the
recycling time and the number of flashes per battery set
are dependent on the age of the batteries, how much
charge they have, and their capacities.