Nikon D300 User Manual (en)

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U
d11: Battery Order
Choose whether the battery in the camera or the batteries in the 
battery pack are used first when an optional MB-D10 battery pack 
is attached.
X icon is displayed in the camera control 
panel when the batteries in the MB-D10 
are in use.
A
The MB-D10 Battery Pack
The MB-D10 takes one EN-EL3e, EN-EL4a, or EN-EL4 rechargeable Li-ion 
battery or eight AA alkaline, Ni-MH, lithium, or nickel manganese batteries 
(an EN-EL3e is supplied with the camera; EN-EL4a, EN-EL4, and AA 
batteries are available separately). Higher frame rates are available with 
EN-EL4a, EN-EL4, and AA batteries (pg. 77); note, however, that in the case 
of AA batteries the frame rate will decrease as battery level drops.
The shooting information display shows the type 
of battery inserted in the MB-D10 as follows:
Option
Description
5
Use MB-D10 batteries 
first
 (default)
The camera battery is used only when the 
batteries in the MB-D10 are exhausted.
6
Use camera battery 
first
The batteries in the MB-D10 are used only 
when the camera battery is exhausted.
MB-D10 battery type display
Battery type
u
EN-EL3e rechargeable Li-ion battery
v
EN-EL4a or EN-EL4 rechargeable Li-ion battery
w
AA batteries