Nikon D2H manual 249, Battery Life

Battery Life

The number of shots that can be taken with an EN-EL4 battery varies with the con- dition of the battery, temperature, and how the camera is used.

Case 1

At room temperature (20 °C/68 °F), approximately 2900 shots can be taken with a fully-charged (1900 mAh) EN-EL4 battery and an AF-S VR 70–200 mm f/2.8G IF ED lens (VR off) under the following standard Nikon test conditions: continuous high-speed shooting mode; continuous-servo autofocus; image quality set to JPEG Normal; image size set to Large; shutter speed ½50 s; shutter-release pressed halfway for three seconds and focus cycled from infinity to minimum range three times with each shot; after six shots, monitor turned on for five seconds and then turned off; cycle repeated once exposure meters have turned off.

Case 2

At room temperature (20 °C/68 °F), approximately 600 shots can be taken with a fully- charged (1900 mAh) EN-EL4 battery and an AF-S VR 24–120 mm f/3.5–5.6G IF ED lens (VR off) under the following standard Nikon test conditions: single-frame shooting mode; single-servo autofocus; image quality set to JPEG Normal; image size set to Large; shutter speed ½50 s; shutter-release pressed halfway for six seconds and focus cycled from infinity to minimum range once with each shot; after each shot, monitor turned on for two seconds 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) or TIFF (RGB) photographs

•Slow shutter speeds

To ensure that you get the most from rechargeable Nikon EN-EL4 batteries:

•Keep the battery contacts clean. Soiled contacts can reduce battery performance.

•Use batteries immediately after charging. Batteries will lose their charge if left un- used.

Technical Notes—Specifications

249