Portable power bank

Description

FIG. 1 is a perspective view of a portable power bank showing my new design;

FIG. 2 is a front elevational view thereof;

FIG. 3 is a rear elevational view thereof;

FIG. 4 is a left side view thereof;

FIG. 5 is a right side view thereof;

FIG. 6 is a top plan view thereof; and,

FIG. 7 is a bottom plan view thereof.

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

Claims

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