V1.02
Thom Hogan’s Complete Guide to the Nikon D300
Page 84
Power
The D300 uses two batteries, only one of which is user-
accessible. The main battery is a 7.4V, 1500mAh
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Lithium-
Ion EN-EL3e pack, the same as was used in the Nikon D80
and D200. If you’ve moved to a D300 from the D200 or D80,
your extra batteries will work just fine in your new camera.
Each EN-EL3e battery weighs about 2.8 ounces (80g), which
makes carrying multiple batteries painless.
The EN-EL3e is similar to
but not the same
as the EN-EL3 or
EN-EL3a that was used in the D50, D70, D70s, and D100. If
you’ve moved from one of those cameras to the D300, you
will not be able to use your extra batteries.
The differences between the EN-EL3e and the previous EN-
EL3 and EN-EL3a are:
1.
The EN-EL3e stores more mAh than the EN-EL3
(1500mAh versus 1400mAh; the EN-EL3a was also
1500mAh).
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What’s mAh mean? That stands for milliamp hour. In other words, the battery could
provide a constant 1500 milliamps of current for an hour. Since the camera at idle
draws less than 3mA, the camera could be left on for over 20 days before the battery
would go dead. Of course, once you start taking pictures and using the many
powered features of the camera, that number drops considerably.