Keyestudio KS0436 Kit Manual page 231

231
5. The white part will act as a caster as the robot drives around.
Cut two pieces of Dual Lock. Remove the adhesive backing, and attach
Battery Holder Attachment:
one piece to the back of the battery holder.
Adhere the second piece to the bottom of the baseplate, directly in the
middle. Press the battery holder to the baseplate so that the two pieces
of Dual Lock snap together.
Insert the batteries into the holder if you have not done so already.
Remember that batteries are polarized and can only go in one way.