A mobile terminal, comprising: a battery unit configured to supply power to at least one electronic element, the at least one electronic element being mounted on a terminal body and configured to perform a plurality of functions based on information related to a plurality of contact addresses; a measurement unit configured to measure a remaining amount of battery charge of the battery unit; a display unit configured to display information; a wireless communication unit configured to transmit information to a server; and a controller configured to: designate at least one contact address of the plurality of contact addresses included in an address book of the mobile terminal, assign a threshold amount of remaining battery charge to implement an allowed function associated with the designated contact address for each of the designated at least one contact address, implement a limited mode according to a comparison of the measured remaining amount of battery charge to the threshold amount of remaining battery charge, limit performance of at least one function related to contact addresses of the plurality of contact addresses other than the designated contact address, and when a messenger application is executed in the limited mode: generate first state information corresponding to an on-line state for a first user and control the wireless communication unit to transmit the first state information for the designated at least one contact address to a social network service, SNS, server, and generate second state information corresponding to an off-line state for a second user and control the wireless communication unit to transmit the second state information for contact addresses other than the designated at least one contact address to the SNS server. a battery unit configured to supply power to at least one electronic element, the at least one electronic element being mounted on a terminal body and configured to perform a plurality of functions based on information related to a plurality of contact addresses; a measurement unit configured to measure a remaining amount of battery charge of the battery unit; a display unit configured to display information; a wireless communication unit configured to transmit information to a server; and a controller configured to: designate at least one contact address of the plurality of contact addresses included in an address book of the mobile terminal, assign a threshold amount of remaining battery charge to implement an allowed function associated with the designated contact address for each of the designated at least one contact address, implement a limited mode according to a comparison of the measured remaining amount of battery charge to the threshold amount of remaining battery charge, limit performance of at least one function related to contact addresses of the plurality of contact addresses other than the designated contact address, and when a messenger application is executed in the limited mode: generate first state information corresponding to an on-line state for a first user and control the wireless communication unit to transmit the first state information for the designated at least one contact address to a social network service, SNS, server, and generate second state information corresponding to an off-line state for a second user and control the wireless communication unit to transmit the second state information for contact addresses other than the designated at least one contact address to the SNS server. designate at least one contact address of the plurality of contact addresses included in an address book of the mobile terminal, assign a threshold amount of remaining battery charge to implement an allowed function associated with the designated contact address for each of the designated at least one contact address, implement a limited mode according to a comparison of the measured remaining amount of battery charge to the threshold amount of remaining battery charge, limit performance of at least one function related to contact addresses of the plurality of contact addresses other than the designated contact address, and when a messenger application is executed in the limited mode: generate first state information corresponding to an on-line state for a first user and control the wireless communication unit to transmit the first state information for the designated at least one contact address to a social network service, SNS, server, and generate second state information corresponding to an off-line state for a second user and control the wireless communication unit to transmit the second state information for contact addresses other than the designated at least one contact address to the SNS server. generate first state information corresponding to an on-line state for a first user and control the wireless communication unit to transmit the first state information for the designated at least one contact address to a social network service, SNS, server, and generate second state information corresponding to an off-line state for a second user and control the wireless communication unit to transmit the second state information for contact addresses other than the designated at least one contact address to the SNS server.