My class received a modular tech tub2 that holds 24 iPads and has a usb syncing hub. The four modules can unclip so that we can share the iPads with four classes or we can use the cart on wheels to roll all of them to another room.
Two students got busy putting the iPads into their slots and then plugging them in so that they would not lose charge over the summer. The great thing is it only takes one electrical outlet to support the whole cart.
I am so happy that our iPads are protected and locked safely away.
I used Google to create this shortened url so you could watch a video about these tubs. Go to goo.gl/n5TUz4.