Nikon D300 - Manual (Page 443)

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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-D10 multi-power battery pack are given
below.
• CIPA standard
1
One EN-EL3e battery (camera) : Approximately 1000 shots
One EN-EL3e battery (MB-D10) : Approximately 1000 shots
One EN-EL4a battery (MB-D10) : Approximately 2000 shots
Two EN-EL3e batteries (MB-D10) : Approximately 2000 shots
One EN-EL3e and one EN-EL4a battery (MB-D10) : Approximately 3000 shots
Eight AA batteries (MB-D10) : Approximately 1000 shots
• Nikon standard 2
One EN-EL3e battery (camera) : Approximately 3000 shots
One EN-EL3e battery (MB-D10) : Approximately 3000 shots
One EN-EL4a battery (MB-D10) : Approximately 5900 shots
Two EN-EL3e batteries (MB-D10) : Approximately 6000 shots
One EN-EL3e and one EN-EL4a battery (MB-D10) : Approximately 8900 shots
Eight AA batteries (MB-D10) : Approximately 2500 shots
1 Measured at 23 °C/73.4 °F (±2 °C/3.6 °F) with an AF-S VR 24–120mm f/3.5–
5.6G ED lens under the following test conditions: lens cycled from infinity
to minimum range and one photograph taken at default settings once
every 30 s; flash fired once every other shot. Live view not used.
2 Measured at 20 °C/68 °F with an AF-S VR 70–200mm f/2.8G ED lens under
the following test conditions: image quality set to JPEG basic, image size
set to M (medium), shutter speed
1 /
250
s, shutter-release button pressed
halfway for three seconds and focus cycled from infinity to minimum
range three times; six shots are then taken in succession and monitor
turned on for five seconds and then turned off; cycle repeated once
exposure meters have turned off.