Canon EOS-1D X Mark III DSLR Camera (Body Only) - Manual (Page 19)

Observe the following instructions when using a battery charger.
• Periodically remove any dust buildup from the power plug and power outlet using a
dry cloth.
• Do not plug in or unplug the product with wet hands.
• Do not use the product if the power plug is not fully inserted into the power outlet.
• Do not expose the power plug and terminals to dirt or let them come into contact
with metallic pins or other metal objects.
Do not place heavy objects on the power cord. Do not damage, break or modify the
power cord.
Do not wrap the product in cloth or other materials when in use or shortly after use when
the product is still warm in temperature.
Do not unplug the product by pulling the power cord.
Do not leave the product connected to a power source for long periods of time.
Do not charge batteries/battery packs at temperatures outside the range of 5 - 40 °C
(41 - 104 °F).
This may cause electric shock, explosion or fire.
Do not allow the product to maintain contact with the same area of skin for extended
periods of time during use.
This may result in low-temperature contact burns, including skin redness and blistering,
even if the product does not feel hot. The use of a tripod or similar equipment is
recommended when using the product in hot places and for people with circulation problems
or less sensitive skin.
Follow any indications to turn off the product in places where its use is forbidden.
Not doing so may cause other equipment to malfunction due to the effect of electromagnetic
waves and even result in accidents.
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