Abstract: A management server, which is a temperature-monitoring device, monitors the temperature of a battery that is removably attached to an apparatus. The management server includes: a server-side acquisition unit that acquires the temperature of the battery when the battery is not in use after discharging electricity to the apparatus; and a determination process unit that performs a temperature determination process for determining whether or not the temperature while the battery is not in use is in a predetermined temperature range. The determination process unit excludes, from items on which the temperature determination process is to be performed, the temperature during an initial period from when the non-use of the battery has started to when a predetermined condition is satisfied.

Abstract: A management system includes a management server that can communicate information with a battery station that houses a battery that is lent based on a usage agreement. The management server acquires the lending date and time at which the battery is lent from the battery station, and the return date and time at which the battery is returned to the battery station during the usage agreement period of an existing contract user. When a prescribed period has elapsed from the lending date and time without the battery being returned, or when a prescribed period has elapsed from the return date and time without the battery being lent, the management server determines that the battery is in an idle state.

Abstract: A work system includes a plurality of working machines each including a working unit; and a power feeding device configured to supply power to the plurality of working machines. The plurality of working machines includes a plurality of types of working machines different in amount of power required to drive the working unit. The power feeding device includes at least one first power transmission unit configured to wirelessly transmit power to a working area of the plurality of working machines. Each of the plurality of working machines includes a power reception unit configured to receive the power wirelessly transmitted to the working area.

Abstract: An information processing apparatus is provided that generates use plan information of batteries for performing each step included in tasks by electrical machines capable of sharing batteries. The apparatus stores a number of batteries to be used for each type of the machine, a battery duration for each type of the machine, and a time required for charging the battery, receives a working schedule including a procedure of the steps, a time required for each of the steps, and types and numbers of machines used in each of the steps, and generates, based on the input information, use plan information of batteries including the number of the batteries required for the series of tasks and charging timings of the batteries.