What happens when the mobile device turns off during a transaction due to a low battery?

This depends on the point of time the mobile device switches of.
The transaction will be automatically voided, if the mobile deviceturns off early in the process.
If the mobile deviceswitches off after the shopper was charged in our system, but before the merchant received a confirmation message on the screen, it will show up in the history, after you have restarted the phone.
To avoid problems, merchants should sure that the mobile device has enough power to perform a transaction. Charge the battery when not in use to avoid transaction failures due to loss of power.