Things You'll Need
Instructions
Turn the light saber off. Position it so that the blade points down. Examine the bottom of the light saber handle.
Twist off the handle end cap. Inside you'll find the battery holder. Slide the battery holder out of the handle.
Insert two AA batteries into the battery holder. Make sure the "Plus" and "Minus" symbols are at the correct ends according to the diagram on the battery holder.
Slide the battery holder back into the light saber handle. Twist the end cap back on to close the handle. Power the light saber back on.