The ornamental design for a powered sharpenerbaseunit, as shown and described.
FIG. 1 is a right side view of the design.
FIG. 2 is a left side view of the design of FIG. 1.
FIG. 3 is a top plan view of the design of FIG. 1.
FIG. 4 is a bottom plan view of the design of FIG. 1.
FIG. 5 is a front end view of the design of FIG. 1.
FIG. 6 is a rear end view of the design of FIG. 1.
FIG. 7 is a first isometric view of the design of FIG. 1, and;
FIG. 8 is a second isometric view of the design of FIG. 1.
The broken lines in these drawings serve to illustrate the environment in which the claimed design is associated. The broken lines form no part of the claimed design.