Nikon D40 - Manual (Page 133)

Technical Notes/Specifications 121
Unless otherwise stated, all figures are for a camera with a fully-charged battery operating at an ambi-
ent temperature of 20°C (68°F).
EN-EL9 Rechargeable Li-ion Battery
Battery Life
Battery life varies with charge state and shooting conditions. The number of shots that can be taken
with a fully-charged EN-EL9 battery (1000mAh) is approximately 470 shots in single-frame shooting
mode and 2,200 shots in continuous shooting mode. Battery life for single frame shooting mode is
measured according to CIPA standards (lens cycled from infinity to minimum range and shutter
released at default settings once every 30s; flash fired with every other shot). Battery life for continu-
ous shooting mode is measured with image quality set to JPEG Basic, a shutter speed of ½
50 s, the
shutter release pressed halfway for three seconds and focus then cycled from infinity to minimum
range three times; after six shots, the monitor is turned on for five seconds and then turned off; the
cycle is repeated once exposure meters have turned off. All measurements are performed with an 18–
55mm f/3.5–5.6GII ED AF-S DX Zoom-Nikkor lens.
The following can reduce battery life:
To ensure maximum battery performance:
• Keep the battery contacts clean. Soiled contacts can reduce battery performance.
• Use batteries immediately after charging. Batteries will lose their charge if left unused.
The battery level displayed by the camera may vary with changes in temperature.
Specifications
Nikon reserves the right to change the specifications of the hardware and software described in this
manual at any time and without prior notice. Nikon will not be held liable for damages that may result
from any mistakes that this manual may contain.
Supported languages Chinese (Simplified and Traditional), Dutch, English, Finnish, French, German, Italian,
Japanese, Korean, Polish, Portuguese, Russian, Spanish, Swedish
Power source • One rechargeable Nikon EN-EL9 Li-ion battery; charging voltage (MH-23 quick
charger): 7.4V DC
• EH-5 AC adapter (available separately; requires optional EP-5 AC adapter connector)
Dimensions (W×D×H) Approximately 126Ч64Ч94mm (5.0Ч2.5Ч3.7in.)
Approximate weight 475g (1lb. 1oz.) without battery, memory card, or body cap
Operating environment
Temperature 0–+40°C (+32–104°F)
Humidity Less than 85% (no condensation)
Type Rechargeable lithium-ion battery
Rated capacity 7.4V/1000mAh
Dimensions (W×D×H) Approximately 36Ч56Ч14mm (1.4Ч2.2Ч0.6in.)
Approximate weight 51g (1.8oz.), excluding power cable
• Using the monitor
• Keeping the shutter-release button pressed half-
way
• Repeated autofocus operations
• Taking RAW (NEF) photographs
• Slow shutter speeds
• Using vibration reduction with VR lenses