<s>
The	O
Canon	B-Algorithm
BG-ED3	I-Algorithm
is	O
a	O
battery	B-Algorithm
grip	I-Algorithm
manufactured	O
by	O
Canon	O
for	O
certain	O
models	O
of	O
its	O
EOS	B-Algorithm
digital	I-Algorithm
SLR	I-Algorithm
camera	I-Algorithm
range	I-Algorithm
.	O
</s>
<s>
It	O
was	O
originally	O
designed	O
for	O
the	O
Canon	B-Device
EOS	I-Device
D30	I-Device
.	O
</s>
<s>
The	O
BG-ED3	B-Algorithm
can	O
also	O
accept	O
the	O
DR-400	O
DC	O
Coupler	O
,	O
which	O
when	O
attached	O
to	O
a	O
CA-PS400	O
or	O
AC	O
adapter	O
ACK-E2	O
,	O
draws	O
directly	O
from	O
an	O
AC	O
power	O
source	O
.	O
</s>
<s>
A	O
BG-ED3	B-Algorithm
is	O
not	O
necessary	O
to	O
use	O
a	O
compatible	O
EOS	B-Algorithm
camera	I-Algorithm
with	O
the	O
DR-400	O
.	O
</s>
<s>
This	O
battery	B-Algorithm
grip	I-Algorithm
also	O
has	O
extra	O
buttons	O
for	O
controlling	O
the	O
camera	O
.	O
</s>
<s>
The	O
BG-ED3	B-Algorithm
has	O
space	O
to	O
store	O
the	O
camera	O
body	O
's	O
detached	O
battery	O
cover	O
next	O
to	O
the	O
post	O
that	O
slides	O
into	O
the	O
camera	O
body	O
's	O
battery	O
compartment	O
.	O
</s>
<s>
It	O
is	O
also	O
compatible	O
with	O
the	O
Canon	B-Algorithm
EOS	I-Algorithm
10D	I-Algorithm
,	O
D30	B-Device
and	O
D60	B-Device
cameras	O
.	O
</s>
