Connector assembly for a battery system

A battery system comprising:

• a plurality of battery cells forming a battery module, the battery cells being stacked in a cell stack-up direction;
• a carrier assembly mounted to the battery module, the carrier assembly having a tray holding a plurality of buss bars for electrically connecting adjacent battery cells of the battery module, the buss bars having voltage sensors sensing a voltage of the corresponding buss bar;
• and
• a connector assembly coupled to the tray, the connector assembly having a connector including a plurality of terminals configured to be mated with a control module connector associated with the battery module and a multi-wire planar cable extending from the connector along a cable axis, the multi-wire planar cable having a plurality of flat wires terminated to corresponding terminals and a common jacket for the plurality of flat wires, the flat wires having exposed terminating portions at a sensor end of the multi-wire planar cable for termination to different voltage sensors associated with corresponding buss bars, the terminating portions being staggered along the cable axis, wherein the multi-wire planar cable is angled such that the cable axis is non-parallel to a cell stack-up direction of the battery cells with the exposed terminating portions being aligned along a terminating axis parallel to the cell stack-up direction.