Nikon D7100 User Manual
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X
A
The Clock Battery
The camera clock is powered by an independent, rechargeable power source, which is
charged as necessary when the main battery is installed or the camera is powered by an
optional EP-5B power connector and EH-5b AC adapter (0 308).
Two days of charging will
power the clock for about three months.
If the camera displays a warning at startup stating
that the clock is not set and a
B
icon flashes in the information display, the clock battery
is exhausted and the clock has been reset. Set the clock to the correct time and date.
A
The Camera Clock
The camera clock is less accurate than most watches and household clocks.
Check the clock
regularly against more accurate time pieces and reset as necessary. The camera clock can
also be synchronized with GPS devices (0 152).