Power Bank

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

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

FIG. 3 is a front elevational view thereof;

FIG. 4 is a rear elevational view thereof;

FIG. 5 is a left side elevational view thereof;

FIG. 6 is a right side elevational view thereof;

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

FIG. 8 is a bottom plan view thereof.

The dash-dash broken lines in the drawings depict the portions of the power bank which form no part of the claimed design.