Structural batteries (SBs) are multipurpose devices that can store energy while also supporting structural loads. The focus was on anticipating internal short circuits and their consequences caused by mechanical abuse while doing Multiphysics Simulations with the commercial solver LS-DYNA. The available numerical strategies are detailed, as are the results of experimental experiments. A typical abuse load scenario (executed using a hemi-spherical dart) on structural batteries is simulated, both with and without their incorporation in a composite laminate. The acquired findings are contrasted and analyzed, emphasizing the use of Multiphysics-based design tools in the creation of safer multifunctional structures.