Specifications: Power Sources: 2 x LP-E8 or 6xAA batteries(LR6, HR, FR) (Without batteries).Compatible with: Canon BG-E8 Fit for: Canon Eos 550D/600D/650D Rebel T2i/T3i/T4i.Replacement for: Canon BG-E8 Operating Temperature :32~104°F/ 0~40℃ Dimensions: Approx. 5.20x4.25x3.15"/132x108x80mm Weight: (without batteries) .8.1 oz./230g (Excluding AA battery holder) Caution:1. This product should only be used with compatible devices specified in this instruction sheet. 2. Only use with the batteries and battery holders recommended. 3. Cover the power terminals with the contact cap when not in use. This prevents electrical shorts caused by metal objects touching the terminals. 4. When the battery holder is removed from the grip, remove the batteries or place the holder in a container to prevent electrical shorts caused by contact with other metal objects. 5. The memory card access lamp may light up when this grip is mounted or removed from the camera. This is part of the normal operation. 6. The control lock is not a power switch; use the camera power switch to turn the power on/off. 7. The battery level may not display properly if batteries are inserted before attaching the grip to camera. 8. Remove batteries from the grip when not in use for an extended period. 9. Do not disassemble or repair this product yourself. Doing so will void your warranty. 10. Avoid water or extreme humidity and be sure to store in a cool, dry location. package includes: 1X Battery grip for Canon 1 X AA battery holderLithium Battery holder x11X Manual.