Amazon.com : Newmowa EN-EL9/EN-EL9a Replacement Battery (2-Pack) and Charger Kit for Nikon D40, D40X, D60, D3000, D5000 : Electronics
Amazon.com : Wasabi Power Battery (2-Pack) and Charger for Nikon EN-EL9 and Nikon D40, D40x, D60, D3000, D5000 : Digital Camera Batteries : Electronics
Nikon D3000 Battery Replacement
Nikon MH-23 Quick Charger for Select Nikon Cameras | Batteries and Power | Nikon at Unique Photo