
To replace the batteries in your Duncan 3572XP Light-Up Yo-Yo, follow these steps: First, unscrew the yo-yo. Hold the two halves firmly and twist them counterclockwise to separate them, exposing the battery compartment. Next, remove the old batteries. Carefully take out the used batteries from the compartment. Then, insert new batteries. Put fresh batteries into the compartment, making sure they are oriented correctly according to the polarity markings (+/-). After that, close the yo-yo. Align the halves and twist them clockwise to reassemble the yo-yo securely. Finally, test the LED lights. Spin the yo-yo to confirm that the LED lights are now functioning correctly with the new batteries. Please note: The correct battery type and size for the Duncan 3572XP LED Light-Up Yo-Yo are not provided in the original information. For specific battery details and replacement advice, consult the user manual or contact Duncan directly.


