SYSTEM COMPRISING A POWER TOOL AND AN ENERGY SUPPLY DEVICE, AND ENERGY SUPPLY DEVICE

A system including a machine tool and an energy supply device, the energy supply device being designed to supply electric energy to the machine tool. The energy supply device can be releasably connected to the machine tool via an interface, wherein the interface includes at least one female contact partner and a male contact partner, and the contact partners can be releasably connected together via a plug connection. The interface has a total electric transmission resistance per pole of less than 0.4 milliohm, preferably less than 0.3 milliohm, particularly less than 0.2 milliohm. Furthermore, the interface can have more than six, preferably more than eight and at most preferably more than twelve individual contact points. A second aspect of the invention relates to an energy supply device for use in the system.