Apparatus and method for monitoring vehicle battery

A method of monitoring a battery of a vehicle, the method comprising:

• obtaining, by at least one or more sensors, a first voltage during a stabilization time of the battery;
• obtaining, by the at least one or more sensors, a minimum voltage measured from a time point when the stabilization time ends to a time point when parking of the vehicle ends as a second voltage of the battery;
• and
• detecting, by the at least one or more sensors, a temperature of the battery from a time point when the first voltage is obtained to a time point when the second voltage is obtained;
• determining, by a processor operatively connected to the one or more sensors, a first discharge amount based on the first voltage and the second voltage;
• determining, by the processor, a second discharge amount consumed in balancing the battery and operating the one or more sensors;
• determining, by the processor, a first self-discharge amount and a second self-discharge amount based on the first discharge amount, the second discharge amount, and the temperature;
• and
• determining, by the processor, whether a short circuit has occurred in the battery based on the first self-discharge amount and the second self-discharge amount.