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 a GP-1or GP-1A GPS unit

•Using an Eye-Fi card

•Using a WU-1a wireless mobile adapter

•Using VR (vibration reduction) mode with VR lenses

To ensure that you get the most from rechargeable Nikon EN-EL14a 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.

364Technical Notes