In LIC, LYC and LAGP the spin-spin relaxation times do not seem to have a field dependence, consistent with the BPP theory when In all the battery electrolytes, the temperature dependence of T2 is stronger than the temperature dependence of T1 for most of the temperature range in the measurement. This would indicate in the BPP model a value of β: 0 < β < 1. In the BPP model, the expected field dependence of the spin-lattice relaxation rate when the relaxation rate is much smaller than the resonance frequency ω is The consequent hopping rates are also consistent with the results from ionic conductivity measurements .