116Technical NotesCarrying Spare BatteriesWhenever possible, carry fully charged spare batteries when taking pictures onimportant occasions.Using the Battery When ColdOn cold days, the capacity of batteries tends to decrease. If an exhausted battery isused at a low temperature, the camera may not turn on. Keep spare batteries in awarm place and exchange as necessary. Once warmed, a cold battery may recoversome of its charge.Battery TerminalsDirt on the battery terminals may prevent the camera from functioning. Should thebattery terminals become dirty, wipe them off with a clean, dry cloth before use.Charging an Exhausted BatteryTurning the camera on or off while an exhausted battery is inserted in the cameramay 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 isnot being used. Minute amounts of current are drawn from the battery while it is inthe camera, even when not in use. This may result in excessive battery drain andcomplete loss of function.• Recharge the battery at least once every six months and completely exhaust itbefore 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°Cto 25°C (59°F to 77°F). Do not store the battery in hot or extremely cold locations.Battery LifeA marked drop in the time a fully charged battery retains its charge, when used atroom temperature, indicates that the battery needs to be replaced. Purchase a newbattery.Recycling Used BatteriesReplace the battery when it no longer holds a charge. Used batteries are a valuableresource. Please recycle used batteries in accordance with local regulations.The Charging AC Adapter• The Charging AC Adapter EH-70P is for use only with compatible devices. Do notuse with another make or model of device.• Do not, under any circumstances, use another make or model of AC adapter otherthan Charging AC Adapter EH-70P or USB-AC adapter. Failure to observe thisprecaution could result in overheating or in damage to the camera.• The EH-70P is compatible with AC 100–240 V, 50/60 Hz electrical outlets. Whenusing in other countries, use a plug adapter (commercially available) as necessary.For more information about plug adapters, consult your travel agency.