The ornamental design for a batterychargerdashboard, as shown and described.
FIG. 1 is a perspective view of the ornamental design for the battery charger dashboard;
FIG. 2 is a front view of the battery charger dashboard of FIG. 1;
FIG. 3 is a right side view of the battery charger dashboard of FIG. 1, the left side view being a mirror image of the right side view shown; and,
FIG. 4 is a top view of the battery charger dashboard of FIG. 1.
In these drawings, the solid lines illustrate the claimed ornamental design, whereas the broken lines illustrate environmental features that form no part of the claimed ornamental design.