| 摘要 |
The present invention is to provide an equalizing method and an apparatus thereof for preventing unit cells from being over charged and discharged. After an ignition switch is turned off, CPU checks a voltage of a main battery and judges whether the main battery is in a state of equilibrium or not. When the main battery is in the state of equilibrium, the CPU controls a first and second switch groups to equalize voltages of unit cells included in the main battery by repeating a charge transfer from a maximum voltage cell to a minimum voltage cell for a predetermined period of time.
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