Patent ID: 8355965

Claim:
A battery exchange service system comprising: a terminal and a management server connected with each other; wherein the terminal includes: an information obtaining unit for obtaining battery information and user information; a charging and discharging unit for charging or discharging a battery pack; a power information generation unit for generating information on an amount of electricity based on charging or discharging by the charging and discharging unit; and an information transmission unit for transmitting to the management server the battery information, the user information, and the information on the amount of electricity; and wherein the management server includes: an information reception unit for receiving the battery information, the user information, and the information on the amount of electricity from the terminal; a battery information database for storing battery information distributed in the battery exchange service system; a contractor information database for storing contractor information for the battery exchange service system; a battery information verification unit for verifying the battery information by the battery information stored in the battery information database; a user information verification unit for verifying the user information by the contractor information stored in the contractor information database; a charge calculation unit for calculating a charge based on the information on the amount of electricity; and a transmission unit for transmitting to the terminal a result of verification of the user information, a result of verification of the battery information, and the charge; and wherein the power information generation unit generates information on an amount of electricity based on a difference between an amount of charge of a first battery pack to be provide to a user and an amount of charge remaining in a second battery pack taken back from the user.