Patent ID: 8311592

Claim:
A portable terminal comprising: a terminal body having a compartment portion for connecting to a detachable external module; a charging circuit provided in the terminal body to charge a battery in the external module; a connecting device in the compartment portion to electrically connect the charging circuit to the battery; and a display device, on the terminal body, to display an indicator that represents information of a charge level of the battery in the external module that is currently external to the terminal body, wherein the display device simultaneously displays a first icon relating to the charge level of the battery in the external module, and a second icon relating to a charge level of a battery within the terminal body, wherein the first icon is the indicator, wherein the terminal body wirelessly receives the information of the charge level of the battery from the external module that is currently external to the terminal body, and the first icon displayed on the display device represents the information of the charge level of the battery in the external module.