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Battery Life
The length of time batteries can be used and the number of shots that can
be uploaded before recharging varies with the condition of the batteries,
signal strength, and how camera and UT-1 are used. The following
measurements were performed using a fully-charged EN-EL15 battery
(1,900 mAh) at a temperature of 23 °C (73.4 °F) while continuously
uploading images with an average file size of 9 megabytes (equivalent to
a large normal-quality JPEG image taken with the D800/D800E) to an ftp
server configured using Internet Information Services (IIS) under
Windows 8.1 over an infrastructure network with the UT-1 in FTP upload
mode (all figures are approximate).
Network
No. of shots uploaded
Battery life
To ensure maximum battery performance:
• Keep the battery contacts clean. Soiled contacts can reduce battery
performance.
• Use EN-EL15 batteries immediately after charging. Batteries will lose
their charge if left unused.
• Periodically check the battery level using Network > Options > Battery
info.
• The battery level displayed by the camera may vary with changes in
temperature.
• A sharp drop in the length of time the battery can hold a charge
indicates that the battery must be replaced.
Wireless (802.11n)
8,000
300 min. (5 hr.)
Ethernet (100BASE-TX)
17,000
480 min. (8 hr.)
Appendices
115
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