Amazon.com : Progo EN-EL14 Rechargeable Li-Ion Battery for Nikon D5100, D5200, D3200, D3100, P7000 DSLR Cameras, Fully Compatible! Show Battery Life on Camera, Use Same as OEM. Retail Package. : Digital Camera
Vertical Battery Grip Holder for Nikon D5100 D5200 DSLR Camera EN-EL 14 Battery Powered with IR Remote Control - Walmart.com
Nikon D5100 Teardown - iFixit
Nikon D5100 DSLR Camera Body, Black {16.2MP} at KEH Camera