Method of and apparatus for setting battery alarm voltage in battery management server

A mobile information terminal includes a battery voltage detecting unit that detects a voltage of a battery, an alarm voltage detecting unit that detects an alarm voltage, and a suspend voltage detecting unit that detects a suspend voltage, and a terminal communication unit that transmits the voltage of the battery detected to a battery management server. The battery management server includes a voltage controller that automatically sets the battery alarm voltage based on the voltage of the battery detected, and a server communication unit that transmits the battery alarm voltage set to the mobile information terminal.