The ornamental design for an accumulatorcharger, as shown and described.
FIG. 1 shows a perspective view of the accumulator charger in accordance with the invention;
FIG. 2 shows a front view of the accumulator charger in accordance with the invention;
FIG. 3 shows a rear view of the accumulator charger in accordance with the invention;
FIG. 4 shows a left side view of the accumulator charger in accordance with the invention;
FIG. 5 shows a right side view of the accumulator charger in accordance with the invention;
FIG. 6 shows a top view of the accumulator charger in accordance with the invention; and,
FIG. 7 shows a bottom view of the accumulator charger in accordance with the invention.
The broken lines showing portions of the accumulator charger are included for the purpose of illustrating environmental structure and form no part of the claimed design.