The BG-E2N grip features new sealing material around the battery compartment to better resist water and dust. The new model replaces the original BG-E2 grip and is compatible with the Canon EOS 20D, 30D and 40D Digital Cameras.
The Canon Battery Grip BG-E2N adds a vertical shutter release, and is compatible with up to two 511A Lithium-ion battery packs, or six AA batteries.