Patent ID: 8853889

Claim:
A communication terminal comprising: a wireless communication interface configured to communicate with another communication terminal; a battery; a display; a contactless power transmitting coil; and circuitry configured to control the display to display at least one of a phone number or registered name of a user corresponding to the another communication terminal together with an amount of power to be transmitted to the another communication terminal; control the display to display a notice when an amount of power remaining in the battery is below a predetermined threshold, the notice prompting a user input confirming that power should still be transmitted to the another communication terminal even though the amount of power remaining in the battery is below the predetermined threshold; control transmission of contactless electric power to the another communication terminal by the contactless power transmitting coil at a predetermined resonance frequency; and control the wireless communication interface to transmit, to the another communication terminal, an instruction indicating the predetermined resonance frequency for receiving the contactless electric power transmitted from the contactless power transmitting coil.