A charging apparatus, wherein the charging apparatus comprises: a first charging interface, detachably connectable to a first energy storage apparatus; a second charging interface, detachably connectable to a second energy storage apparatus, wherein at the same time when the first energy storage apparatus is connected to the first charging interface, the second charging interface may be connected to the second energy storage apparatus; a power supply conversion circuit, converting external power supply into charging energy; a charging circuit, outputting charging energy output by the power supply conversion circuit to the first charging interface and the second charging interface, wherein the charging circuit comprises a first charging mode and a second charging mode, in the first charging mode, the charging circuit outputs charging energy to both the first charging interface and the second charging interface, and in the second charging mode, the charging circuit outputs charging energy to the first charging interface or the second charging interface selectively; and a control circuit, selectively sending a first signal or a second signal to the charging circuit, wherein when the control circuit sends the first signal, the charging circuit enters the first charging mode; and when the control circuit sends the second signal, the charging circuit enters the second charging mode; wherein the control circuit further comprises a priority setting module, wherein the priority setting module detects a characteristic parameter of each energy storage apparatus connected to a corresponding charging interface, determines, according to the characteristic parameter, a respective time required to fully charge the energy storage apparatus, and sends a signal to the charging circuit according to the determining result; and wherein in the second charging mode, the charging circuit first outputs, according to the signal sent by the priority setting module, charging energy to a charging interface connected to an energy storage apparatus that requires a short time to be fully charged, and then outputs, after the energy storage apparatus is fully charged, charging energy to a charging interface connected to an energy storage apparatus that requires a long time to be fully charged. a first charging interface, detachably connectable to a first energy storage apparatus; a second charging interface, detachably connectable to a second energy storage apparatus, wherein at the same time when the first energy storage apparatus is connected to the first charging interface, the second charging interface may be connected to the second energy storage apparatus; a power supply conversion circuit, converting external power supply into charging energy; a charging circuit, outputting charging energy output by the power supply conversion circuit to the first charging interface and the second charging interface, wherein the charging circuit comprises a first charging mode and a second charging mode, in the first charging mode, the charging circuit outputs charging energy to both the first charging interface and the second charging interface, and in the second charging mode, the charging circuit outputs charging energy to the first charging interface or the second charging interface selectively; and a control circuit, selectively sending a first signal or a second signal to the charging circuit, wherein when the control circuit sends the first signal, the charging circuit enters the first charging mode; and when the control circuit sends the second signal, the charging circuit enters the second charging mode; wherein the control circuit further comprises a priority setting module, wherein the priority setting module detects a characteristic parameter of each energy storage apparatus connected to a corresponding charging interface, determines, according to the characteristic parameter, a respective time required to fully charge the energy storage apparatus, and sends a signal to the charging circuit according to the determining result; and wherein in the second charging mode, the charging circuit first outputs, according to the signal sent by the priority setting module, charging energy to a charging interface connected to an energy storage apparatus that requires a short time to be fully charged, and then outputs, after the energy storage apparatus is fully charged, charging energy to a charging interface connected to an energy storage apparatus that requires a long time to be fully charged.