A mobile communication terminal has a first wireless communication unit, an interface capable of detachably connecting an external apparatus, a determination unit for determining whether the external apparatus connected to the interface is a second wireless communication unit, a battery voltage detection unit for detecting battery voltage of a power supply unit, a charging detection unit, and a control unit for controlling, if the battery voltage detected by the battery voltage detection unit is lower than a first predetermined value while the charging detection unit detects the charging state, so as to prohibit concurrent use of the first wireless communication unit and the second wireless communication unit.