State-of-charge (SOC) estimation of lithium-ion batteries in portable devices without sensing the current is considered in this study. Unlike the traditional approach of separate estimation of the SOC and current. we firstly reformulate the problem as state estimation for the nonlinear system with an unknown input which refers to the current in this study. then a novel variational Bay... https://www.soiebiologique.com/quick-sale-Axol-Friends-Mel-Axol-the-Axolotl-Black-Purple-special-save/