Battery Grip for the Canon EOS 5D Mark IV
The Canon BG-E20 is an optional battery grip specifically dedicated to the EOS 5D Mark IV. The BG-E20 can be operated with one or two LP-E6/LP-E6N battery packs installed. With two packs, the already-impressive battery life is doubled, compared to using a single LP-E6/LP-E6N pack in-camera.
For extended use of the EOS 5D Mk IV's movie mode or Live View, the BG-E20 is an outstanding accessory.
The BG-E20 also provides full vertical shooting controls, which can be independently turned on or off as the photographer desires. Many users find the battery grip can enhance camera handling, especially when shooting vertical pictures.