A gaming system compatible with patron-controlled portable electronic devices, such as smart phones, is described. In particular, an electronic gaming machine (EGM) can be configured with a power interface that allows portable electronic device carried by the patron to receive power. To prevent patrons from monopolizing an EGM for the purposes of solely charging their portable electronic device, the EGM can be configured with power interface control logic that controls the flow of power to the power interface including cutting off power to the power interface. The EGM can include an object detection capability that allows objects, such as a portable electronic device located on or near the EGM to be detected. In one embodiment, when the EGM detects an object has been abandoned, i.e., left at the EGM by a patron, the EGM can be configured to take actions that allow the object to be recovered.