A 2CR5 sized battery pack contains 6v of power and uses lithium chemistry. Similar to CR-P2 battery, it is usually manufactured by using two 3v CR123A battery packaged together. Because of the shape, it is primary installed in the right hand grip area of cameras. It is most commonly used in Canon EOS line of cameras, but is also used in many digital cameras.
NOTE: the brand of the batteries will depend on the stock we have