Nikon En-el9 Battery For Cameras - Storage Batteries - AliExpress
CITYORK EN-EL9 EN-EL9a ENEL9 ENEL9a enel9 Battery For Nikon D40 D40X D60 D3000 D5000 Digital Camera with LCD USB Charger - AliExpress
Amazon.com : 2x Pack - Nikon EN-EL9 Digital Camera Battery and Charger Replacement with Car & EU Adapters (1300mAh, 7.4V, Lithium-Ion) - Compatible with Nikon D3000, D5000, D40, D60, D40X, EN-EL9, EN-EL9a,
Amazon.com : Newmowa EN-EL9/EN-EL9a Replacement Battery (2-Pack) and Charger Kit for Nikon D40, D40X, D60, D3000, D5000 : Electronics