The structural, electronic and ion transport properties of GBs are pivotal to the design of solid electrolytes for solid-state batteries. Despite this fact, our understanding of GBs in these materials is restricted by the current limitations facing both experimental and computational methods. In this study, we have investigated the significant effects that GBs have on four representative solid electrolyte materials (Li particularly negligible effects on activation energy. This can, in part, be attributed to the GBs in these materials not significantly perturbing the electrostatic potential.