1. Battery life of the originally supplied batteries is dependant on storage conditions.2. Blots and fingerprints on terminals may cause loose connection and corrosion.Wipe the terminals before loading the batteries.3. It is advised to carry spare batteries in remote or foreign locations.4. Battery performance decreases in low temperatures. Keep them warm when in coldclimates or locations.External battery case PE401 is available as an optional accessory.5. Store the batteries in a cool and dry place, away from direct sunlight.6. Remove the batteries from the camera body when they will not be used for a longtime.7. Replace the batteries with new ones as soon as they are exhausted. Liquid leakagefrom the battery may damage the camera.8. Read the label warnings of the batteries for their handling.Battery CareBattery PowerRemaining batterycharge displayThe camera’s power is turned on when the drive dial is set to “S,” “C” or “M.UP.” Inorder to prevent the camera’s battery power from draining, sleep mode is automaticallyestablished if no operations are performed for a specific period of time while the poweris ON (with exposure metering status maintained).The initial setting for the exposure metering status maintenance period is 15 seconds.It can be changed at any time to a period within 30 sec., 60 sec. using the customsettings. (C-03 on page 84)In sleep mode, operating the shutter button or function setting button restores powerON status.In sleep mode, the shutter speed and f-number in the external LCDs go off, and theicon shown in the figure is displayed. (This mark appears in program AE mode.)For the purpose of the descriptions and explanations provided in theseinstructions, it is assumed that the camera’s power is on.