Abstract: A portable solar power supply includes a solar-powered charger including a solar cell; a circuit board including a power management unit, a buck-boost converter unit, a charging control unit, a data management unit, an on/off switch, a set of indicators, a power inlet, a power outlet, a first connector, a wireless communications member, a line transmission member, a data storage member, an RFID member, an SD card member, a USB port, a Micro USB port, and a solar charging member; and holes; and a rechargeable battery including at least one electrochemical cell each shaped to partially contain the solar-powered charger and including a second connector, a third connector, snapping members, and slots. The second connector is capable of connecting to the first connector or the third connector, and the snapping members are capable of being retained in the holes or the slots.

Abstract: A portable external power-supplying device is disclosed. The portable external power-supplying device implements a unique mechanism to detachably assemble battery units whose number can be adjusted according to user needs, which means the overall aggregate capacity of the portable external power-supplying device is adjustable. The portable external power-supplying device is adaptive to connect and charge a portable electronic device.

Abstract: A portable external power-supplying device is disclosed. The portable external power-supplying device implements a unique mechanism to detachably assemble battery units whose number can be adjusted according to user needs, which means the overall aggregate capacity of the portable external power-supplying device is adjustable.