narsuitus
Well-known

Nikon 35mm Manual Focus by Narsuitus, on Flickr
My Nikon F2 (camera on left) has no built-in light meter and no built-in motor drive. It does not need batteries except to power the add-on Nikon MD-1 motor drive that is located under the base plate of the camera and attached to the camera body by screwing into the tripod socket. The Nikon MB-1 battery pack is located under the motor drive and screws into the motor drive. My MB-1 battery pack holds 10 AA batteries and will last for over 30 rolls of 36-exposure film. With motor drive and battery pack, my Nikon F2 is may largest and heaviest 35mm camera.
My Nikon N2000 (camera on lower right) has a built-in light meter and a built-in motor drive. The light meter provides aperture priority exposure control, manual exposure control, and program exposure control (no shutter priority). The motor drive is powered by 4 AAA batteries. I have not yet tested it to determine how many rolls fresh batteries can handle.
My Nikon EM (camera on upper right) has a built-in light meter but no built-in motor drive. The light meter is primarily aperature priority. It has limited manual exposure control, no shutter priority exposure control, and no program exposure control. Without the optional motor drive that attaches to the bottom of the camera, the EM is my smallest and lightest Nikon 35mm SLR.