The lock on the front of the cart can be opened with your building key.
When moving the cart, turn off the master switch (on the back of the cart), then unplug it.
It is recommended that adults unplug and plug the iPads from the cart.
Want to make sure that the iPads are plugged in? Look at the back of the cart! A green light indicates that the iPad is plugged in and fully charged. An amber light indicates that an iPad is plugged in and still charging. No light indicates that the iPad is not in the cart or is not plugged in correctly.