An electronic apparatus comprising: at least one battery (110; 210; 310); a processor (150; 250, 260; 350) supplied with power from the at least one battery (110; 210; 310), the processor including a communication processor and an application processor, wherein the communication processor is configured to output a preset signal in a state where the application processor is in a sleep mode, the processor being configured to: control the electronic apparatus; a battery determination control unit (120; 220; 320; 608; 711) connected to the at least one battery (110; 210; 310) in parallel with the processor (150; 250, 260; 350), and supplied with power directly from the at least one battery (110; 210; 310), the battery determination control unit (120; 220; 320) configured to: receive, as an input, the preset signal, and output a first control signal according to the preset signal; a battery voltage determination unit (130; 230; 330; 602, 603, 604; 701-707) connected to the at least one battery (110; 210; 310) in parallel with the processor (150; 250, 260; 350), and supplied with power directly from the at least one battery (110; 210; 310), the battery voltage determination unit (130; 230; 330) configured to: receive the first control signal from the battery determination control unit (120; 220; 320), and output a second control signal when a voltage of the at least one battery (110; 210; 310) satisfies a designated condition, according to the first control signal; and a battery information output unit (140; 240; 340) configured to output battery information according to the second control signal that is output by the battery voltage determination unit (130; 230; 330). at least one battery (110; 210; 310); a processor (150; 250, 260; 350) supplied with power from the at least one battery (110; 210; 310), the processor including a communication processor and an application processor, wherein the communication processor is configured to output a preset signal in a state where the application processor is in a sleep mode, the processor being configured to: control the electronic apparatus; a battery determination control unit (120; 220; 320; 608; 711) connected to the at least one battery (110; 210; 310) in parallel with the processor (150; 250, 260; 350), and supplied with power directly from the at least one battery (110; 210; 310), the battery determination control unit (120; 220; 320) configured to: receive, as an input, the preset signal, and output a first control signal according to the preset signal; receive, as an input, the preset signal, and output a first control signal according to the preset signal; a battery voltage determination unit (130; 230; 330; 602, 603, 604; 701-707) connected to the at least one battery (110; 210; 310) in parallel with the processor (150; 250, 260; 350), and supplied with power directly from the at least one battery (110; 210; 310), the battery voltage determination unit (130; 230; 330) configured to: receive the first control signal from the battery determination control unit (120; 220; 320), and output a second control signal when a voltage of the at least one battery (110; 210; 310) satisfies a designated condition, according to the first control signal; and receive the first control signal from the battery determination control unit (120; 220; 320), and output a second control signal when a voltage of the at least one battery (110; 210; 310) satisfies a designated condition, according to the first control signal; and a battery information output unit (140; 240; 340) configured to output battery information according to the second control signal that is output by the battery voltage determination unit (130; 230; 330).