Power bank

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

FIG. 2 is a rear perspective view with the kickstand shown in a closed configuration;

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 view thereof;

FIG. 8 is a bottom view thereof; and,

FIG. 9 is a rear perspective view with the kickstand shown in an open configuration.

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