Nikon D800 - Manual (Page 47)

En_03
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D
The Battery and Charger
Read and follow the warnings and cautions on pages xiii–xv and 401–404
of this manual. Do not use the battery at ambient temperatures below
0 °C/32 °F or above 40 °C/104 °F; failure to observe this precaution could
damage the battery or impair its performance. Capacity may be
reduced and charging times increase at battery temperatures from 0 °C/
32 °F to 15 °C/59 °F and from 45 °C/113 °F to 60 °C/140 °F.
If the CHARGE lamp flickers (i.e., flashes about eight times a second)
during charging, confirm that the temperature is in the correct range
and then unplug the charger and remove and reinsert the battery. If the
problem persists, cease use immediately and take battery and charger
to your retailer or a Nikon-authorized service representative.
Do not short the charger terminals; failure to observe this precaution
could result in overheating and damage to the charger. Do not move
the charger or touch the battery during charging. Failure to observe
this precaution could in very rare instances result in the charger
showing that charging is complete when the battery is only partially
charged. Remove and reinsert the battery to begin charging again.
Battery capacity may temporarily drop if the battery is charged at low
temperatures or used at a temperature below the temperature at which
it was charged. If the battery is charged at a temperature below 5 °C (41
°F), the battery life indicator in the Battery info (
0 332) display may
show a temporary decrease.
The battery may be hot immediately after use. Wait for the battery to
cool before recharging.
The supplied power cable and AC wall adapter are for use with the
MH-25 only. Use the charger with compatible batteries only. Unplug
when not in use.
A marked drop in the time a fully charged battery retains its charge
when used at room temperature indicates that it requires replacement.
Purchase a new EN-EL15 battery.