Technical Notes
Caring for the Product
Carrying Spare Batteries
Whenever possible, carry fully charged spare batteries when taking pictures on important
Using the Battery When Cold
On cold days, the capacity of batteries tends to decrease. If an exhausted battery is used at a
low temperature, the camera may not turn on. Keep spare batteries in a warm place and
exchange as necessary. Once warmed, a cold battery may recover some of its charge.
Battery Terminals
Dirt on the battery terminals may prevent the camera from functioning. Should the battery
terminals become dirty, wipe them off with a clean, dry cloth before use.
Charging an Exhausted Battery
Turning the camera on or off while an exhausted battery is inserted in the camera may result
in reduced battery life. Charge the exhausted battery before use.
Storing the Battery
Always remove the battery from the camera or optional battery charger when it is not
being used. Minute amounts of current are drawn from the battery while it is in the
camera, even when not in use. This may result in excessive battery drain and complete
loss of function.
Recharge the battery at least once every six months and completely exhaust it before
returning it to storage.
Put the battery in a plastic bag, etc. in order to insulate it and store it in a cool place. The
battery should be stored in a dry location with an ambient temperature of 15°C to 25°C (59°F
to 77°F). Do not store the battery in hot or extremely cold locations.
Battery Life
A marked drop in the time a fully charged battery retains its charge, when used at room
temperature, indicates that the battery needs to be replaced. Purchase a new battery.
Recycling Used Batteries
Replace the battery when it no longer holds a charge. Used batteries are a valuable resource.
Please recycle used batteries in accordance with local regulations.
The Charging AC Adapter
The EH-73P/EH-73PCH Charging AC Adapter is for use only with compatible devices. Do
not use with another make or model of device.
Do not use any USB cable other than the UC-E21. Using a USB cable other than the UC-E21
could result in overheating, fire or electric shock.
Do not, under any circumstances, use another make or model of AC adapter other than
the EH-73P/EH-73PCH Charging AC Adapter or USB-AC adapter. Failure to observe this
precaution could result in overheating or in damage to the camera.
The EH-73P/EH-73PCH is compatible with AC 100–240 V, 50/60 Hz electrical outlets. When
using in other countries, use a plug adapter (commercially available) as necessary. For
more information about plug adapters, consult your travel agency.
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