We simulate 19 different polymer electrolytes with ether, ester, thiol and other functional groups that all have experimentally reported ionic conductivity values (SI section 1). Simulations were performed at multiple temperatures to evaluate how the temperature affects ion transport in various polymers. The parity between experimental and simulated ionic conductivity was analyzed under three different choices of simulation temperature: 1) at the nominal experimental temperatures, 2) at effective temperatures that match the exact glass transition temperature difference, 3) and at a constant shifting of the mean glass transition temperature offset found across polymer systems. We evaluated the convergence of the loglog slopes of diffusivity and of the transference number computed using various assumptions to determine the minimum length of simulation to reach diffusive regimes of ionic transport.