Buy from Amazon.com : http://fave.co/1HJq8qk <br /><br />Meike MK-D7100 Vertical Battery Grip for Nikon D7100 replace MB-D15 as EN-EL15<br /><br />Product Description : <br />This battery gripholder is compatible with Nikon D7100 <br />Features shutter-release button AE-LAE-L button multi selector main and sub-command dials for shooting in a vertical position <br />Can hold one EN-EL15 rechargeable Li-ion batteries 6 AA batteries LR6 HR FR effectively increasing the camera operating time <br />Has a tripod socket