Abstract: The energy storage power device comprises an energy storage power supply and charging apparatuses; the energy storage power supply comprises a power supply body and an output portion, the output portion being in circuit connection to the power supply body to output electrical energy stored in the power supply body to the outside; the charging apparatuses are detachably connected to the output portion so as to be charged by the energy storage power supply; the charging apparatuses are used to be connected to an electrical device to supply power to the electrical device; at least one of the charging apparatuses is replaced, after being depleted of power, with at least another of the charging apparatuses from the energy storage power supply so as to supply power to the electrical device, such that power is continuously supplied to the electrical device by the charging apparatus.

Abstract: The energy storage power supply comprises a housing; the housing comprises at least two accommodating portions, the at least two accommodating portions comprise at least one first accommodating portion and at least one second accommodating portion, the first accommodating portion is adapted to detachably accommodate a first battery cell; the second accommodating portion is adapted to detachably accommodate a second battery cell; the first battery cell and the second battery cell are different; each the accommodating portion is provided with a charging portion for supplying power to the first battery cell or the second battery cell; and the first battery cell and the second battery cell are adapted to supply power to the same or different first electrical device in a manner of being separated from the energy storage power supply.

Abstract: A multi-purpose mobile power supply includes a first discharge interface configured for powering a computer, communication and consumer electronic product; a second discharge interface configured for powering an electric tool; and an assembly of the mobile power supply and the electric tool. The electric tool includes: an motor; a mounting portion configured for a freely assembling and disassembling connection with the multi-purpose mobile power supply; a power supply terminal provided on the mounting portion and electrically connected to the motor, where the power supply terminal is configured for being combined with the second discharge interface; a latch arranged on the mounting portion, where the multi-purpose mobile power supply is provided with a latch groove corresponding to the latch, and the latch is fitted in the latch groove in a latching connection.