Nikon Z 7II User Manual page 895

Actions such as the following can reduce battery endurance:
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Keeping the shutter-release button pressed halfway
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Repeated autofocus operations
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Taking NEF (RAW) photographs
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Slow shutter speeds
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Using camera Wi-Fi (wireless LAN) and Bluetooth features
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Using the camera with optional accessories connected
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Repeatedly zooming in and out
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Taking pictures at low ambient temperatures
Battery Endurance
778