Portable power bank

Description

FIG. 1 is a front, right and top perspective view of a portable power bank, showing my new design;

FIG. 2 is a rear, left and bottom perspective view thereof;

FIG. 3 is a front view thereof;

FIG. 4 is a rear view thereof;

FIG. 5 is a left side view thereof;

FIG. 6 is a right side view thereof;

FIG. 7 is a top plan view thereof; and,

FIG. 8 is a bottom plan view thereof.

The broken lines shown in the drawings illustrate portions of the portable power bank that form no part of the claimed design.

Claims

The ornamental design for a portable power bank, as shown and described.