Combination battery charger and discharger

FIG. 1 is a top, front left side perspective view of a combination battery charger and discharger, showing my new design;

FIG. 2 is a top, rear left side perspective view thereof;

FIG. 3 is a front elevation view thereof;

FIG. 4 is a rear elevation view thereof;

FIG. 5 is a top plan view thereof;

FIG. 6 is a bottom plan view thereof;

FIG. 7 is a right side elevation view thereof; and,

FIG. 8 is a left side elevation view thereof.

The broken lines in the drawings depict portions of the combination battery charger and discharger that form no part of the claimed design.