With ownership of electric vehicles (EV) increasing, greater attention is being paid to their safety. As the energy storage component in pure electric vehicles, the safety of the battery is particularly important. Cylindrical batteries are still commonly used in electric vehicles, especially the 18650-battery type. Indentation, tension and compression tests have been carried out on this battery by many researchers. However, to date, shock testing of battery packs has received less analytical focus. In this paper, a homogeneous model of a battery pack consisting of nine aligned cells is developed, whereby the shock signals specified by the UN38.3 standard are applied in three directions in space. Simulations are carried out in ABAQUS after setting material parameters and constraints to obtain stress, strain and deformation results, as well as variations of impact acceleration. The simulated stress results were compared with the mechanical properties of the material according to their maximum stress criteria, whereby it is found that the battery pack would not fail under any of the three operating conditions. Through the fast Fourier transform, it is ascertained that the shock signal, after propagating through the battery pack, has an acceleration maximum in the frequency domain only at 0Hz. The model employed in this paper effectively simplifies the calculation process and ensures the accuracy of the calculation.