What is cell balancing in battery management system? All Questions › Category: Battery Management System › What is cell balancing in battery management system? 0 Vote Up Vote Down Chetan Shidling Staff asked 5 years ago I need short information. 1 Answers 0 Vote Up Vote Down Chetan Shidling Staff answered 5 years ago Cell balancing is the method of balancing the voltages and state of charge. There are invariably slight differences in the state of charge, self-discharge rate, capacity, impedance, and temperature characteristics.