Nikon D3300 - Manual (Page 384)

364 Technical Notes
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.