| 摘要 |
A battery-containing unit and a charging base are a battery-containing unit includes a lithium ion battery, and a charging base to which the battery-containing unit to be charged is placed. The battery-containing unit includes a charging circuit that converts an alternating current produced in an energized coil into a direct current, and a transmitter that detects the voltage of the lithium ion battery and transmits a voltage signal to the charging base. The charging base includes a receiver that receives the signal from the transmitter and detects the voltage signal, and a high frequency power supply that provides AC power to the energizing coil The power supply of the charging base detects the voltage of the lithium ion battery through the receiver and the transmitter, and is controlled to charge the lithium ion battery so that the voltage of lithium ion battery does not exceed a predetermined voltage.
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