With the available interchangeable Ni-MH Battery Pack EN-4 fully charged, you can take up to approx. 1,000 pictures* with the D1X, D1H and D1. The EN-4 can be recharged using the available Quick Charger MH-16 (100-240V AC)/MH-17** (12V DC) or Multi Charger MH-19** (100-240V AC/12V DC). The F100's Quick Charger MH-15 and the E3's EH-3 can also be used to charge the EN-4 battery.
* Under Nikon's testing conditions
** Can be plugged into an automobile cigarette lighter