DSTE Pro IR Remote 100D Vertical Battery Grip + 2x LP-E12 for Canon EOS 100D Rebel SL1 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 for extended shooting Li-ion Battery Info: DC 8.4V (max); DC 7.2V (mean) 16.6Wh/2300mAh When using two batteries, the grip will automatically switch to the second battery if the first becomes depleted. Switching does not interrupt camera operation. Built in Infrared remote control function and remaining power indicator