Portable charging storage case

FIG. 1 is a top perspective view showing a first embodiment of the new design for a portable charging storage case;

FIG. 2 is a top view thereof;

FIG. 3 is a bottom view thereof;

FIG. 4 is a front view thereof;

FIG. 5 is a back view thereof;

FIG. 6 is a left side view thereof; and

FIG. 7 is a right side view thereof.

FIG. 8 is a top perspective view showing a second embodiment of the new design for a portable charging storage case.

FIG. 9 is a top view thereof;

FIG. 10 is a bottom view thereof;

FIG. 11 is a front view thereof;

FIG. 12 is a back view thereof;

FIG. 13 is a left side view thereof; and,

FIG. 14 is a right side view thereof.

The broken lines showing portions of the case are for the purposes of illustrating environment and form no part of the claimed design.