Nikon D90 - Manual (Page 295)

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n
D Battery Life
The number of shots that can be taken with fully-charged batteries varies with the condition of
the battery, temperature, and how the camera is used. In the case of AA batteries, capacity also
varies with make and storage conditions; some batteries can not be used. Sample figures for
the camera and optional MB-D80 multi-power battery pack are given below.
• CIPA standard
1
One EN-EL3e battery (camera) : Approximately 850 shots
One EN-EL3e battery (MB-D80) : Approximately 850 shots
Two EN-EL3e batteries (MB-D80) : Approximately 1700 shots
six AA batteries (MB-D80) : Approximately 600 shots
• Nikon standard 2
One EN-EL3e battery (camera) : Approximately 4200 shots
One EN-EL3e battery (MB-D80) : Approximately 4200 shots
Two EN-EL3e batteries (MB-D80) : Approximately 8400 shots
six AA batteries (MB-D80) : Approximately 1900 shots
1 Measured at 23 °C/73.4 °F (±2 °C/3.6 °F) with an AF-S DX NIKKOR 18–105mm f/3.5–5.6G ED
VR lens under the following test conditions: lens cycled from infinity to minimum range
and one photograph taken at default settings once every 30 s; after photograph is taken,
monitor is turned on for 4 s; tester waits for exposure meters to turn off after monitor is
turned off; flash fired at full power once every other shot. Live view not used.
2 Measured at 20 °C/68 °F with an AF-S DX NIKKOR 18–105mm f/3.5–5.6G ED VR lens under
the following test conditions: release mode set to 9, autofocus mode set to AF-C, image
quality set to JPEG basic, image size set to M (medium), white balance set to A, ISO
sensitivity set to ISO 200, shutter speed
1 /
250
s, focus cycled from infinity to minimum range
three times after exposure meters have been on for 3 s; six shots are then taken in
succession and monitor turned on for 4 s and then turned off; cycle repeated once
exposure meters have turned off.
The following can reduce battery life:
• Using the monitor
• Keeping the shutter-release button pressed halfway
• Repeated autofocus operations
• Taking NEF (RAW) photographs
• Slow shutter speeds
• Using VR (vibration reduction) mode with VR lenses
To ensure that you get the most from rechargeable Nikon EN-EL3e batteries:
• Keep the battery contacts clean. Soiled contacts can reduce battery performance.
• Use batteries immediately after charging. Batteries will lose their charge if left unused.