Promaster ProMaster EN-EL4A Battery - Nikon D3, D3x, D3S, D2H, D2Xs, D2HS - ASAP Photo and Video
Used Nikon D3 | MPB
Kastar 4-Pack EN-EL4a Battery 11.1V 3200mAh and AC LCD Dual Fast Charger Compatible with Nikon Camera D3, Nikon Camera D3S, Nikon Camera D3X, Nikon Camera F6 - Walmart.com