The ornamental design for a batterymodule, as shown and described.
FIG. 1 is a front top right perspective view of a battery module showing my new design;
FIG. 2 is a front view of the design shown in FIG. 1;
FIG. 3 is a back view of the design shown in FIG. 1;
FIG. 4 is a left side view of the design shown in FIG. 1;
FIG. 5 is a right side view of the design shown in FIG. 1;
FIG. 6 is a top view of the design shown in FIG. 1; and,
FIG. 7 is a bottom view of the design shown in FIG. 1.
The break lines shown in the middle portion of the battery module in the Figures indicate that the appearance of any portion of the article between the break lines forms no part of the claimed design. The broken lines shown in the figures are included for the purpose of illustrating portions of the battery module and form no part of the claimed design.