Abstract: A battery system includes one or more shear walls to provide support. A shear wall may include a support structure and conductive traces to route signals or measurements without the need for wire runs. The support structure may help to maintain the arrangement of battery cells of the battery system, while the conductive traces allow voltages among the battery cells to be monitored. Busbars, or other electrical terminals, may be coupled to the conductive traces of the shear wall, and processing equipment may also be coupled to the conductive traces. Accordingly, the processing equipment may monitor voltage among the battery cells, which may allow balancing among battery modules, diagnostics, and other functions. The shear wall may be constructed of FR-4 or other circuit board material, and the conductive traces may include bonded copper, or other electronically conductive material.