Digitek Battery Grips for 5D Mark II
The Digitek Battery Grip 5D MARK II is a dedicated battery grip for the Canon EOS 5D which allows you to use one or two LP-E6 batteries. With two batteries the already long life is doubled and this will be especially useful if using movie mode.
Use 6 AA Batteries.
Use 1/2 LP-E6 Li-ion Batteries.