摘要 |
A battery module charging system includes a power transmitting device, including a primary coil configured to transmit AC power, and a power receiving unit, including a secondary coil configured to receive the AC power transmitted from the primary coil by electromagnetic induction. The power receiving unit is configured to convert the received AC power into DC power. A positioning mechanism is configured to allow the power transmitting device to be detachably attached to the power receiving unit and to position the primary and secondary coils such that the coils are allowed to be electromagnetically coupled to each other when the power transmitting device is attached to the power receiving unit. Further, a selection circuitry is configured to selectively charge a plurality of cells in a battery module with the DC power. The plurality of cells, the cells being secondary batteries, are connected to each other in a series.
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