The 5D II is a battery grip for the CANON EOS 5D Mark II DSLR cameras, which can hold two battery packsLP-E6 or six size-AA batteries.
It is equipped with a vertical-grip shutter button, command dial, AE lock/FE lock, and AF point selector button to enable shooting in the same fashion as a horizontal grip.
Major Specifications
Type: 5D II Pro
Power Source: (1) one or two LP-E5 battery packs
(2) 6 pieces AA-size batteries
(3)AC Adapter Kit ACK-E6
Dimensions: 149.1x114.3x76.3mm
Weight: approx. 315g (not including battery packs and battery chambers)