Amazon.com : BM Premium EN-EL9, EN-EL9A Battery for Nikon D5000, D3000, D60, D40x & D40 Digital SLR Camera : Electronics
MB-D5000H Battery Grip For Nikon D5000 D3000 D60 D40 Digital SLR Camera Work With EN-EL9E Battery Holder
Infrared IR Modified Nikon D5000 DSLR camera body. Hoya 720nm filter fitted. – Space Tinkerer
Nikon D5000 Troubleshooting - iFixit
Infrared IR Modified Nikon D5000 DSLR camera body. Hoya 720nm filter fitted. – Space Tinkerer
Best Buy: Nikon Battery Quick Charger MH-23
Amazon.com: Nikon D5000 Digital Camera Battery Charger (110/240v with Car & EU adapters) - Replacement Charger for Nikon EN-EL9 Battery - : Electronics