A construction machine includes: a swing structure (1d); an electric motor (16) that drives the swing structure; an operating device (4b) that outputs an operating signal according to an operating amount and an operating direction; an inverter device (13) ...

An excavator includes an electric load, an electrical energy storage unit including an electrical energy storage part (19) that supplies electric power to the electric load, and a control unit (30) that controls an amount of charge to the electrical energy...