Looking to sell or upgrade your own Canon BG-E2?

MODEL OVERVIEW
Canon BG-E2
Launched with the Canon EOS 50D D-SLR is the redesigned high-capacity Battery Grip BG-E2, which offers high-volume shooting and easier vertical shooting. Compatible with up to two BP-511A battery packs or a set of six AA-size batteries

Canon BG-E2 Battery Grip For EOS 20D & 30D adds a vertical shutter release, and is compatible with up to two of Canon's BP-511/511A/512/514 Lithium-ion battery packs, or alternatively a set of six AA batteries.