Cordless Blender Base

FIG. 1 is a top, front and right-side perspective view of a cordless blender base, showing our new design; FIG. 2 is a rear elevation view thereof; FIG. 3 is a front elevation view thereof; FIG. 4 is a left side elevation view thereof; FIG. 5 is a right side elevation view thereof; FIG. 6 is a top plan view thereof; and, FIG. 7 is a bottom plan view thereof. In the drawings, the broken lines depict portions of the cordless blender base that form no part of the claimed design.