Things You'll Need
Instructions
Find the zipper on the bottom of the product. For safety reasons, it may not have a tab you can use to open the zipper. If you have difficulty, thread a string or wire through the hole in the zipper.
Unzip the zipper until you find the battery compartment near the rear wheels.
Remove the screws that hold the battery cover on. You will need a Phillips screwdriver to accomplish this task. Remove the screw by turning it counterclockwise.
Push the battery, using your thumb, into the spring that holds it in place. Slide your thumb up to pop the battery out of the compartment. Remove the other battery by grasping it and taking it out.
Place the new batteries in by sliding the first one in on the end opposite the spring. Place the second battery in by pushing the spring back with the end of the battery. Make sure you insert the battery with the positive and negative ends facing the direction indicated in the battery compartment. The positive end of the battery has the little nub on the end, while the negative end as a small indention.