The ornamental design for a rechargeablespotlight, as shown and described.
FIG. 1 is a front perspective view of a rechargeable spotlight showing my new design;
FIG. 2 is a front perspective view shown in an open state thereof;
FIG. 3 is a rear perspective view thereof;
FIG. 4 is a left side view thereof;
FIG. 5 is a right side view thereof;
FIG. 6 is a front view thereof;
FIG. 7 is a rear view thereof;
FIG. 8 is a top plan view thereof; and,
FIG. 9 is a bottom plan view thereof.
The broken lines showing of the rechargeable spotlight are for the purpose of illustrating environment and portions of the article, and form no part of the claimed design.