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Notes on handling batteries
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Usable batteries
Use four AA-type batteries (1.5V or lower) of any of the following types.
• High-power manganese batteries are not recommended.
Alkaline-manganese (1.5V)/Nickel (1.5V) batteries
Non-rechargeable. Never attempt to charge these batteries in a battery
charger. Otherwise, they may explode.
Lithium (1.5V) batteries
Non-rechargeable. Never attempt to charge these batteries in a battery
charger. Otherwise, they may explode.
• Depending on battery specifications, when these batteries become hot, the safety circuits
are activated, cutting off power. This often occurs when the flash unit is operated in the
repeating flash mode. Battery power will recover when the temperature returns to normal.
NiCd battery (rechargeable, 1.2V) /Ni-MH (rechargeable, 1.2V)
Rechargeable. Before recharging the batteries, be sure to read the instruction
manuals for your batteries and battery charger for detailed information on how
to handle and recharge the batteries.
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Notes on batteries
• Because flash consumes a large amount of battery power, rechargeable batteries may
not operate properly before reaching the end of their stated lifespan or the number of
charging/discharging as specified by the battery manufacturer.
• Replace all four batteries at the same time. Do not mix battery types or brands or use
old with new batteries.
• When installing batteries, turn off the power of the Speedlight and never reverse the
polarity of the batteries.
• If the battery terminals become soiled, remove dirt and smudges before use, as this
may cause a malfunction.
• Battery power tends to weaken as the temperature drops. It also gradually decreases
when batteries are not used for a long time and recovers after a short break following
intensive use. Be sure to check battery power and replace the batteries with fresh ones,
if you notice any delays in the recycling time.
• Do not store batteries in locations subject to high temperatures and high humidity.
To protect the earth’s environment, do not dispose of
used rechargeable batteries yourself. Instead, take
these batteries to your nearest recycling center.
Recycling
rechargeable
Li-ion batteries