DSTE Pro BG-E5 Vertical Battery Grip + 2x LP-E5 for Canon EOS 450D 500D 1000D SLR Digital Camera A firm, comfortable grip for vertical-position shooting with the Camera. Buttons and controls are conveniently placed and easy to reach for greater comfort. Holds two Li-ion batteries Battery or six AA Battery for extended shooting Li-ion Battery Info: DC 8.4V (max); DC 7.2V (mean) 15.5Wh/2100mAh When using two batteries, the grip will automatically switch to the second battery if the first becomes depleted. Switching does not interrupt camera operation. Remaining power indicator