NEEWER Professional Vertical Battery Grip Holder for NIKON D3100/D3200/D3300 SLR Digital Camera EN-EL14 Battery – neewer.com
Amazon.com : Energizer ENB-NEL14 Digital Replacement Battery EN-EL14 for Nikon D3100, D3200, D5100, D5200, P7000 and P7100 (Black) : Digital Camera Batteries : Electronics