Portable charger having switch for adjusting voltage thereof

A portable charger, comprising:

• a power supply, comprising a first casing, a battery module, a first terminal set, a voltage control module and a first switch portion, the battery module, the first terminal set, the voltage control module and the first switch portion being disposed in the first casing, and the battery module, the first terminal set and the first switch portion being electrically connected to the voltage control module;
• and
• an adapter, comprising a second casing, a second terminal set, an output connector and a second switch portion, the second terminal set, the output connector and the second switch portion being disposed in the second casing, the second terminal set being electrically connected to the output connector, the second casing being detachably disposed on the first casing, and the second switch portion and the first switch portion configured to switch control mode of the voltage control module;
• wherein, the battery module has an initial voltage;
• when the second casing of the adapter is detached from the first casing of the power supply, and the first switch portion is not activated by the second switch portion, the portable charger is in a first state, and the voltage control module adjusts the initial voltage to a first voltage, allowing the first terminal set to output the first voltage;
• when the second casing of the adapter is disposed on the first casing of the power supply, the first switch portion is activated by the second switch portion, the portable charger is in a second state, and the voltage control module adjusts the initial voltage to a second voltage which is different from the first voltage, allowing the first terminal set to output the second voltage.