FIG. 1 is a front perspective view of an electric wheelchair base showing my new design;
FIG. 2 is a rear perspective view of the electric wheelchair base shown in FIG. 1;
FIG. 3 is a front elevational view of the electric wheelchair base shown in FIG. 1;
FIG. 4 is a rear elevational view of the electric wheelchair base shown in FIG. 1;
FIG. 5 is a left-side elevational view of the electric wheelchair base shown in FIG. 1;
FIG. 6 is a right-side elevational view of the electric wheelchair base shown in FIG. 1;
FIG. 7 is a top plan view of the electric wheelchair base shown in FIGS. 1; and,
FIG. 8 is a bottom plan view of the electric wheelchair base shown in FIG. 1.
The broken lines shown in the drawings depict portions of the electric wheelchair base that form no part of the claimed design. The stippling shading depicted on portions of the electric wheelchair base represents a contrast in color with the portions that are devoid of stippling shading. The stippling itself forms no part of the claimed design.