Abstract: An information processing terminal 100, which is used for after-sales service of an energy storage facility 10 that includes an energy storage unit U including a plurality of energy storage modules M, includes: a display unit 107; and a control unit 101, in which the control unit 101 acquires, from the energy storage facility, a temperature of each of the energy storage modules M after start of operation, the temperature being measured by a temperature sensor 37 provided in each of the energy storage modules M, and in which the control unit 101 displays a temperature distribution of the energy storage unit U on the display unit 107 by a color distribution of display colors of a plurality of blocks B depicting an arrangement of the plurality of energy storage modules M in the energy storage unit U.

Abstract: A maintenance method for a power storage device 1 in which a plurality of power storage units 9 in which a plurality of battery cells 11 are connected in series are connected in parallel. The maintenance method includes a comparison step for comparing log data for battery cells 11 that are at the same series connection positions in the power storage units 9 and a determination step for determining, on the basis of comparison results from the comparison step, the power storage unit 9 at which an abnormality has occurred.

Abstract: An information processing terminal 100, which is used for after-sales service of an energy storage facility 10 that includes an energy storage unit U including a plurality of energy storage modules M, includes: a display unit 107; and a control unit 101, in which the control unit 101 acquires, from the energy storage facility, a temperature of each of the energy storage modules M after start of operation, the temperature being measured by a temperature sensor 37 provided in each of the energy storage modules M, and in which the control unit 101 displays a temperature distribution of the energy storage unit U on the display unit 107 by a color distribution of display colors of a plurality of blocks B depicting an arrangement of the plurality of energy storage modules M in the energy storage unit U.

Abstract: In the present invention, a display unit 50 of a pattern generation device 5 displays a reception screen for receiving a selection and/or an input regarding charging/discharging of a power storage system having a power storage device. An operation unit 51 receives, in the reception screen, a selection made from among multiple kinds of operations regarding charging/discharging. On the basis of the operation selected through the operation unit 51, a control unit 53 generates pattern data which is used for predicting a deterioration of the power storage device and which indicates transitions of charging/discharging amounts.