Vello BGC52 Battery Grip for Canon EOS Rebel T2i T3i T4i Cameras

Compatible with the Canon EOS Rebel T2i, T3i, T4i and T5i Digital SLR cameras. Includes a secondary shutter release button, aperture/exposure compensation button, AF point selection/magnify button, AE lock/FE lock/Index/Reduce button and main dial. Accepts up to 2 LP-E8 batteries to effectively double the camera's battery life. The included AA battery holder allows you to use 6 AA batteries (alkaline, Ni-MH, lithium or nickel-manganese) for added convenience. Features tripod mount and a securely locking battery chamber door. Contains a camera battery door holder to store the camera's battery chamber door when the grip is mounted. Power Source: 1 or 2 x LP-E8 Li-ion Batteries, 6 x AA/LR6 Batteries, Also works with the Canon AC Adapter Kit ACK-E8 (sold separately) Operating Temperature: 32-104°F (0-40°C) Tripod Mount Thread Size: 1/4"-20 Dimensions (HxWxD): 5.2 x 4.3 x 3.1" (132 x 108 x 80mm) Weight: 8.8 oz (249 g) (without battery tray and batteries)