Household mobile power supply

The invention provides a household mobile power supply. The household mobile power supply comprises a lithium-ion capacitor unit, a voltage detection unit, a capacitance balancing circuit, a charging circuit, an output circuit and a packaging shell, and is characterized in that the lithium-ion capacitor unit comprises a plurality of lithium-ion capacitor banks which are connected in series; the voltage detection unit is connected with each lithium-ion capacitor bank and used for detecting voltage of each lithium-ion capacitor bank; the capacitance balancing circuit is connected with each lithium-ion capacitor bank and the voltage detection unit, and is used for balancing the voltage of each lithium-ion capacitor bank according to a detection result of the voltage detection unit; the charging circuit is connected with the lithium-ion capacitor unit and used for charging the lithium-ion capacitor unit by using external input current; the output circuit is connected with the lithium-ion capacitor unit, and is us