Works with Canon EOS 20D, 30D, 40D, and 50D Digital Cameras
The Vello BG-C3 is a battery grip designed for use specifically with the Canon 20D, 30D, 40D, and 50D digital SLR cameras. It accepts up to 2 BP-511A batteries to effectively double the camera's battery life. The included AA battery holder allows you to use 6 AA batteries for added convenience. It is also compatible with the Canon AC Adapter Kit ACK-E8.