Kastar Pro Vertical Battery Grip (Replacement for BG-E18) for Canon EOS Rebel T6i, Rebel T6s, EOS 750D, EOS 760D, EOS 8000D, KISS X8i,M3 Digital SLR Cameras Kastar Pro Vertical Battery Grip can be used 1 or 2 LP-E10 lithium batteries, to meet user needs for long time continuous shooting When using two batteries, the grip will automatically switch to the second battery if the first becomes depleted. Switching does not interrupt camera operation. variety of operating controls: shutter button, Main Dial, multi-controller, AF point selection button, AE lock/FE lock button, AF start button, and multi-function button. Make photographers easily control to shoot vertical and horizontal, shooting can get the same feeling when handling, really stable when the photographer using for heavy weight lenses Same functions as the original battery grip, include 30-day Money Back and one year Warranty.