CPC H02J 7/007182 (2020.01) [H02J 7/0013 (2013.01)] | 20 Claims |
1. A charging system, comprising:
a first battery;
a second battery having a capacity smaller than that of the first battery, wherein the second battery comprises a cell and a switch device connected to the cell;
a charging component connected to the first battery and connected to the second battery via the switch device, wherein the charging component is configured to output a charging current to the first battery and the second battery; and
a control component connected to the first battery and the second battery, wherein the control component is configured to detect electric quantity of the first battery and the second battery during a charging process, and control the switch device to turn on or turn off based on the electric quantity.
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