A box for a set of electric storage batteries for an electric motor vehicle
includes at least two mutually opposite side walls (14, 16) extending
substantially parallel and defining between them a housing for receiving
batteries. Each side wall (14, 16) is internally provided with a series of
projecting support elements (30, 32) extending along the wall, each
support element (30,32) forming, jointly with a support element of the
other side wall, a support for at least one rack of storage batteries.
