FIG. 1 is a bottom, front and right-side perspective view of a rechargeable battery, showing our new design;

FIG. 2 is a front elevational view thereof;

FIG. 3 is a rear elevational view thereof, the broken line showing is included for the purpose of illustrating environmental structure only and forms no part of the claimed design;

FIG. 4 is a left-side elevational view thereof;

FIG. 5 is a right-side elevational view thereof;

FIG. 6 is a top plan view thereof; and,

FIG. 7 is a bottom plan view thereof.