Portable power supply

[0001]FIG. 1 is a front, left and top perspective view of a portable power supply showing my new design;

[0002]FIG. 2 is a rear, left and bottom perspective view thereof;

[0003]FIG. 3 is a front view thereof;

[0004]FIG. 4 is a rear view thereof;

[0005]FIG. 5 is a left side view thereof;

[0006]FIG. 6 is a right side view thereof;

[0007]FIG. 7 is a top view thereof;

[0008]FIG. 8 is a bottom view thereof;

[0009]FIG. 9 is another rear, left and bottom perspective view thereof, showing a plug connector being detached from a main body of the portable power supply; and,

[0010]FIG. 10 is a front, right and top perspective view thereof, showing the plug connector being detached from the main body of the portable power supply.

[0011]FIGS. 1-8 show the plug connector being mounted in the main body of the portable power supply.

[0012]The evenly broken lines depict portions of the portable power supply that form no part of the claimed design.