Camera is working fine with no issues, happily fires away. Flash also works. No corrosion in battery chamber.

Unfortunately the AF lens isn’t working, but can be used as a manual focus lens. Aperture stops down etc.

Comes with grip, shutter button and selector wheel works fine.

Specs;

TTL Phases Detection AlFocus

Shutter 30 s – 1/8000 s

Viewfinder 92% vertical coverage, 94% horizontal coverage, 0.73 magnification

16 zone evaluative metering

AF operating range at ISO 100: EV 0–18

Built-in zoom flash, three focal length-dependent settings

Five frames per second in one shot AF mode

Three frames per second in AI servo AF mode

Five horizontal autofocus sensors

Eye-controlled focusing (EOS 5/A2e)

16 Custom functions

Requires one 6V 2CR5 battery

Dimensions and weight 154 × 121 × 74 mm, 675 g (1.488 lb)