Abstract: An energy supply device is provided, in particular for a power tool, the energy supply device being detachably connectable to the power tool. The energy supply device includes at least one element for locking the energy supply device in the power tool, wherein the at least one locking element is mounted rotatably about at least one first axis of rotation, wherein the first axis of rotation runs through a pivot point of the at least one locking element. In this case, the pivot point of the locking element precedes a locking location in an insertion direction. The energy supply device has at least one element for actuation by a user, wherein the at least one actuating element is mounted rotatably about at least one second axis of rotation which runs through a pivot point of the actuating element. In this case, the pivot point of the at least one locking element can precede a locking location in an insertion direction. In a second aspect, the invention relates to a power tool having a energy supply device.

Abstract: An energy supply device is provided, in particular for a power tool, the energy supply device being detachably connectable to the power tool. The energy supply device includes at least one element for locking the energy supply device in the power tool, wherein the at least one locking element is mounted rotatably about at least one first axis of rotation, wherein the first axis of rotation runs through a pivot point of the at least one locking element. The energy supply device includes at least one energy storage cell which has an internal resistance DCR_I of less than 10 milliohms (mOhm). In this case, the pivot point of the at least one locking element can precede a locking location in an insertion direction. A power tool having a energy supply device is also provided.

Abstract: A tool unit including a handheld power tool and a side handle mechanically connected to the power tool, wherein the side handle has a threaded rod. The power tool has an undercut groove delimited by a groove bottom, and the side handle has a channel nut engaging the undercut groove, wherein the channel nut has a threaded hole, wherein the threaded rod of the side handle is threadedly engaged in the threaded hole of the channel nut and acts against the groove bottom of the undercut groove. Side handles and power tools for use in such a tool unit are also provided.