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 D3000 review: Nikon D3000 - CNET
Battpit: Digital Camera Battery Replacement for Nikon D3000 (1150 mAh) EN-EL9 7.4 Volt Li-ion Digital Camera Battery - Walmart.com
Amazon.com : STK EN-EL9 Battery Charger for Nikon D3000, D5000, D40, D60, D40X SLR Cameras, MH-23 and Nikon EN-EL9 / EN-EL9a Batteries : Digital Camera Battery Chargers : Electronics
EN-EL9 EN-EL9a Battery for Nikon D3000 D5000 D40 D60 + Wall Dock / LCD Charger | eBay
Amazon.com : STK EN-EL9 EN-EL9a Battery Replacement for Nikon D3000, D5000, D40, D60, D40X : Digital Camera Batteries : Electronics
Amazon.com : BM Premium EN-EL9, EN-EL9A Battery for Nikon D5000, D3000, D60, D40x & D40 Digital SLR Camera : Electronics