Phottix BG-5D MK III Battery Grip for Canon 5D MARK III
Phottix's BG-5D MK III Multi Power Battery Pack for 5D MARK III DSLR Camera is a grip that attaches to the Canon 5D MARK III DSLR camera. It provides extended battery power with the batteries (not included) in the grip, plus giving you a better, more secure and stable hold on the camera, making it easier to handhold at lower shutter speeds.
The battery pack is supplied with two battery trays, one that holds two LP-E6 or LP-E6N rechargeable batteries, and one that holds 6 AA batteries.
This power pack accepts 1.5V LR-6 (Alkaline), Lithium (FR6), Ni-MH (HR6) or Ni-Mn (ZR6) batteries.