Dual Battery Charger for Nikon D2Hs, D2Xs, D3, D3X, EN-EL4, EN-EL4a, E – SMAVtronics
Original EN-EL4a Battery Charging Quick Charger MH-22 For Nikon D3 D3S D3X D2X | eBay
Amazon.com: Kastar EN-EL4a AC LCD Dual Fast Charger Compatible with Nikon Camera D3, Nikon Camera D3S, Nikon Camera D3X, Nikon Camera F6 : Everything Else