TfL cautions users over pitfalls of Apple Pay

Commuters who run out of battery, have more than one device, or receive a call as they try to pay could get stuck at gates and face penalty fares

Transport for London has warned tube, train and bus passengers paying with Apple Pay on iPhones and Apple Watches not to let their batteries run flat or they could get stuck at gates and face penalty fares.

TfL advises users that, as with other smartphone payment systems including EE's Cash on Tap, Apple Pay only works if a device has power. It warns that, if the battery runs out in the middle of a journey, a user will not be able to tap out, which means they could be charged a maximum fare.