DSTE Pro BG-E7 BGE7 Vertical Battery Grip + 2x LP-E6 LP-E6N for Canon EOS 7D 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 or six AA Battery for extended shooting Li-ion Battery Info: DC 8.4V (max); DC 7.2V (mean) 19.2Wh/2600mAh 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