Battery information guide device and method therefor

A battery information guide device and a method therefor include a display and at least one processor electrically connected to the display. The at least one processor is configured to display information related to a first distance to empty (DTE) on the display based on official fuel efficiency and a state of charge (SOC), receives information related to a speed limit on a road, when the at least one processor concludes that a vehicle enters the road, displays information related to a second DTE expected when the vehicle travels at the speed limit on the display, and displays information related to a third DTE determined based on an instantaneous vehicle speed of the vehicle, when a vehicle speed of the vehicle is greater than the speed limit.