
The Nikon Quick Charger MH-16 is required to recharge the Ni-MH battery pack EN-4 that powers the Nikon D1 Digital Camera. Maximum recharging time per EN-4 unit is approximately five hours per battery pack. The MH-16 can also be used to recharge or refresh EN-3 batteries for the E3 and E3s digital cameras and the MN-15 batteries for the F100 film camera.