NOVELTY - The accumulator assembly (10) comprises electrical energy accumulator elements (12) that each comprise connecting electrodes (18, 20), an assembly unit (22, 24, 50, 54) connecting the electrodes, a unit for connecting an external component to the assembly, and a monoblock connector support comprising an assembly base carried by the assembly unit and a fixing strap that supports the connector and is formed in such a way as to enable the movement of the connector in relation to the assembly base when an external load is applied to the connector and/or the fixing strap.    USE - The accumulator assembly is useful in a battery block (claimed) of an electric vehicle or a hybrid vehicle.    ADVANTAGE - The accumulator assembly can be easily and economically manufactured with excellent mechanical properties and simple and compact design thus can be easily assembled inside the electric vehicle.    DETAILED DESCRIPTION - The accumulator assembly (10) comprises electrical energy accumulator elements (12) that each comprise connecting electrodes (18, 20), an assembly unit (22, 24, 50, 54) connecting the electrodes, a unit for connecting an external component to the assembly, and a monoblock connector support comprising an assembly base carried by the assembly unit and a fixing strap that supports the connector and is formed in such a way as to enable the movement of the connector in relation to the assembly base when an external load is applied to the connector and/or the fixing strap. The fixing strap is elastically deformable according to specified direction, and comprises a connection portion extending from the assembly base and a fixing portion extending along the connection portion and supporting the connector. The connecting portion comprises an angled portion. The fixing portion extending transversally according to the assembly base. The accumulator elements are superimposed according to an axis of stack along which the fixing portion extends. The assembling unit comprises spacers disposed axially between the connection electrodes, cross-bar extending axially through recess of connection electrodes and the spacers, and flasks of ends cooperating with the cross-bar for gripping axially the connection electrodes and stacked spacers. A part of the flask or the spacer is electrically insulated in the form of the assembly base. The spacers and electrically conductive connection pins are mounted within a recess of the spacer associated with and connected to electrical power cables fixed to the connector. An INDEPENDENT CLAIM is included for a battery block.    DESCRIPTION OF DRAWING(S) - The diagram shows an exploded perspective view of a battery assembly.    Accumulator assembly (10)    Electrical energy accumulator elements (12)    Housing (14)    Closure zone (16)    Connecting electrodes (18, 20)    Assembly unit. (22, 24, 50, 54)