The present invention relates to a portable apparatus combining a battery charger with an emergency power supply, including: a hand-held body; an AC input section, a battery section; a DC output section; an LED display section; and a control circuit section. Accordingly, the inventive portable apparatus combining a battery charger with an emergency power supply functions as an adapter for supplying electric power to an electronic device and a charger for charging a battery contained therein when being applied with an external power supply, and functions as an emergency power supply for supplying proper electric power to the electric device using a built-in charged battery when being not applied with the external electric power supply.
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