The Sunpak CG-10 Battery Cartridge is a replacement or spare battery pack for the Sunpak 622 handle-mount flash. It holds four C size batteries.
Sunpak employs a third prong upon their 'household' type sync cords for added stability and the prevention of "accidentally" inserting the cord into an electrical socket. The household connection is remarkably stable and secure, even without the addition of the third prong, and never seems to accidentally disconnect as so many other forms of camera/flash connection will upon occasion.
The Sunpak BK-1 bracket base features an adjustable 12-position bracket designed for 35mm camera systems. It comes with a 1/4"-20 threaded camera mounting screw and attaches directly to the 544, 555, 522, 611 and 622 flashes, or to the Basic Grip.