Device for identifying operating data of a motor-driven tool and system

A device identifies operating data of a motor-driven tool. The device includes an identifying and/or evaluating device, an operating data memory unit, a communication interface, a housing, and an elastic element. The housing accommodates an electrical energy storage device and has an open and closed condition. In the open condition, the electrical energy storage device is insertable or removable. In the closed condition, the elastic element is configured to fix the electrical energy storage device by applying pressure along the insertion and removal direction of the energy storage device. The force amounts to a value of the mass of the storage device multiplied by at minimum 1 N per g.