The device (1) has a bottom (2) and a peripheral wall defining a housing (4) to receive batteries. An inner wall (10) extends in the housing, and defines a duct (11) for circulation of flow of air. Reception areas of electrical connection units connecting ...

A receiving connector 6A and upper and lower guide sockets 7 are mounted on an attachment 9, and the attachment 9 is mounted on a casing 3A by means of a bolt member 16 so that positioning of the attachment 9 is adjustable. Guide rails 5A guide wheels 4 of...