| 摘要 |
<p>Provided is a reasonable-price and user-friendly battery pack which can output an AC voltage equivalent to a commercial power source voltage and which can easily be carried to a location where no commercial power source can be obtained. Specifically, a battery pack (100) includes: [a] a plurality of cells (111) connected in series as a cell group; [b] a discharge control circuit (120) which converts the DC voltage of the cell group into an AC voltage; [c] an AC output terminal (122) which supplies the output of the discharge control circuit to an electric device; [d] a charge control circuit (123) which converts the commercial power source voltage into a DC voltage to charge the cell group; and [e] a charge terminal (124) which supplies power from the commercial power source to the cell group. These components are contained in a single case. The AC output terminal (122) can be connected to an outlet plug for power input to an electric device driven by the commercial power source. The charge terminal (124) can be connected to an outlet of the commercial power source.</p> |
