Electronic device for controlling battery charge state of external electronic device, and operating method therefor

An electronic device, comprising:

• a temperature sensor;
• a battery;
• a communication circuit;
• a connecting terminal for a connection with an external electronic device;
• a processor electrically connected with the temperature sensor, the battery, and the communication circuit;
• and
• memory electrically connected with the processor,
• wherein the memory stores instructions which, when executed, cause the processor to control the electronic device to:
• determine whether the connecting terminal is electrically connected with the external electronic device;
• measure a first temperature around the electronic device using the temperature sensor, based on determining that the connecting terminal is connected with the external electronic device;
• receive first battery state information from the external electronic device through the communication circuit, based on the measured first temperature being greater than a specified temperature, the first battery information including information about a charging state of a battery of the external electronic device;
• determine a first charging state of the battery of the external electronic device, based on the received first battery state information;
• and
• transmit a first signal for controlling the charging state of the battery of the external electronic device to be less than a first specified level to the external electronic device through the communication circuit, based on determining that the first charging state of the battery of the external electronic device is greater than or equal to the first specified level.