Power system having a battery unit that calculates cumulative work volume value

摘要

A camera includes: a battery unit on which a battery is mounted, that can be detachably loaded into the camera and supplies power to the camera; and a function unit that executes camera functions, wherein: as a function of the camera is executed, the function unit transmits information related to the executed function to the battery pack; and the battery unit has a storage unit in which the information related to the camera function is stored.

主权项

1. A battery unit that is capable of supplying power to an outside device, comprising:
a battery; a calculation unit that calculates: a consumed battery capacity cumulative value by accumulating a consumed battery capacity of the battery and a work volume cumulative value by accumulating a work volume of the outside device sent from the outside device; a storage unit that stores: a charged battery capacity of the battery, the consumed battery capacity cumulative value calculated by the calculation unit and the work volume cumulative value calculated by the calculation unit; and a transmission control unit that controls to transmit: the charged battery capacity, the consumed battery capacity cumulative value and the work volume cumulative value to the outside device.