The ornamental design for a storagebattery, as shown and described.
FIG. 1 shows a front view of the design according to the invention.
FIG. 2 shows a top plan view of the design according to the invention.
FIG. 3 shows a bottom plan view of the design according to the invention.
FIG. 4 shows a right side view of the design according to the invention. The left side view is a mirror image of the right side view.
FIG. 5 shows a perspective view of the design according to the invention.
FIG. 6 shows a sectional view of the design according to the invention taken along the line 6—6 as shown in FIG. 1; and,
FIG. 7 shows a rear view of the design according to the invention.
The elements shown in even broken lines are for illustrative purposes only and form no part of the claimed design. The dash-dot broken lines define boundaries of the design and do not form part of the claimed design.