Nikon EN-4 NiMH Battery (7.2v 2000mAh) 25240 B&H Photo Video
Nikon D1 - 20th Anniversary Unboxing - YouTube
Amazon.com : Glorich EH-4 Replacement AC Power Adapter kit for Nikon D1 D1H D1X DSLR Cameras : Electronics
NIKON EN-4 Ni-MH BATTERY PACK NOS (NJL019528) | eBay
Camera Battery Replacement for Nikon EN-4 - 1800mAh, 7.2V, Li-ion | 500268400
Nikon EN-4 2000 mAh Rechargeable Battery for Nikon D1/D1x - VGC (25240) | eBay
EN-4 Battery for Nikon D1 D1H D1X Camera | eBay
High Quality 7.2V 2700mAh 19.4Wh Brand New Replacement Battery for Nikon EN-4 D1 D1H D1X - AliExpress
Nikon D1 retro review | Cameralabs
2018 Rechargeable EN-4 Battery Pack (7.2V 2000mAh) For Nikon D1 D1H D1X Digital Camera - Buy 2018 Rechargeable EN-4 Battery Pack (7.2V 2000mAh) For Nikon D1 D1H D1X Digital Camera Product on Alibaba.com
Nikon D1, by Lewis Collard
Nikon D1 - Wikipedia
Nikon D1 - Retro Review
Nikon D1 - Digital Camera, No Battery, Working Condition | eBay