Ipad control of AC2

I have a customer who has turned there house into a B and B.

They have an application controller connected wirelessly to an Ipad in a wall mount.

I have created a link on the Ipad to get rid of the information bar.

Tenants keep playing with the Ipad and someone has even downloaded a game onto it.

The letting agents have go site frequently to reset the Ipad.

I have done a trial offsite putting an Ipad into Kiosk mode.

This stops people playing with it but the problem is if there is a power failure the Ipad loses it connection.

It then has to be removed from the wall mount, taken out of kiosk mode, reconnected and put back in kiosk mode.

Is there a solution to this problem.

 

Run the iPad off a power bank that is permanently on charge (i.e. a cheap ups)