The ornamental design for a batterylamp, as shown and described.
FIG. 1 is a perspective view of a battery lamp showing our new design;
FIG. 2 is left side elevational view showing the design for the battery lamp of FIG. 1;
FIG. 3 is a right side elevational view showing the design for the battery lamp of FIG. 1;
FIG. 4 is a rear elevational view showing the design for the battery lamp of FIG. 1;
FIG. 5 is a front elevational view showing the design for the battery lamp of FIG. 1;
FIG. 6 is a top elevational view showing the design for the battery lamp of FIG. 1; and,
FIG. 7 is a bottom elevational view showing the design for the battery lamp of FIG. 1.
The broken line showing of portions of the battery lamp in the drawings is included for illustrative purposes only and forms no part of the claimed design.