A key fob system, comprising: a key fob and an access system, the key fob comprising: at least one wireless communication circuit; a power supply node coupled to provide power to the at least one wireless communication circuit; a battery node; a battery power circuit that provides power via the power supply node when a battery with sufficient charge is coupled to the battery node; and an inductive power circuit that, with the key fob in an inductive power mode, only provides power via the power supply node when energized with inductive power and when the battery node does not provide power, the access system comprising: an inductive power generator that can inductively couple to the inductive power circuit of the key fob when the inductive power circuit is within a predetermined coupling zone distance of the inductive power generator; an access controller comprising at least one wireless communication circuit; and characterized by a sensor that senses and reports a presence of the key fob to the access controller, wherein when the presence of the key fob is detected, the inductive power generator is configured to activate and the access controller is configured to attempt to establish wireless communications with the key fob, wherein the key fob comprises COM circuitry for establishing primary wireless communications with corresponding COM circuitry of the access controller and DIST circuitry for performing distance measurements for localization of the key fob, the key fob being configured to enable the COM circuitry and disable the DIST circuitry when in the inductive power mode. a key fob and an access system, the key fob comprising: at least one wireless communication circuit; a power supply node coupled to provide power to the at least one wireless communication circuit; a battery node; a battery power circuit that provides power via the power supply node when a battery with sufficient charge is coupled to the battery node; and an inductive power circuit that, with the key fob in an inductive power mode, only provides power via the power supply node when energized with inductive power and when the battery node does not provide power, the access system comprising: an inductive power generator that can inductively couple to the inductive power circuit of the key fob when the inductive power circuit is within a predetermined coupling zone distance of the inductive power generator; an access controller comprising at least one wireless communication circuit; and characterized by a sensor that senses and reports a presence of the key fob to the access controller, wherein when the presence of the key fob is detected, the inductive power generator is configured to activate and the access controller is configured to attempt to establish wireless communications with the key fob, wherein the key fob comprises COM circuitry for establishing primary wireless communications with corresponding COM circuitry of the access controller and DIST circuitry for performing distance measurements for localization of the key fob, the key fob being configured to enable the COM circuitry and disable the DIST circuitry when in the inductive power mode. at least one wireless communication circuit; a power supply node coupled to provide power to the at least one wireless communication circuit; a battery node; a battery power circuit that provides power via the power supply node when a battery with sufficient charge is coupled to the battery node; and an inductive power circuit that, with the key fob in an inductive power mode, only provides power via the power supply node when energized with inductive power and when the battery node does not provide power, the access system comprising: an inductive power generator that can inductively couple to the inductive power circuit of the key fob when the inductive power circuit is within a predetermined coupling zone distance of the inductive power generator; an access controller comprising at least one wireless communication circuit; and characterized by a sensor that senses and reports a presence of the key fob to the access controller, wherein when the presence of the key fob is detected, the inductive power generator is configured to activate and the access controller is configured to attempt to establish wireless communications with the key fob, wherein the key fob comprises COM circuitry for establishing primary wireless communications with corresponding COM circuitry of the access controller and DIST circuitry for performing distance measurements for localization of the key fob, the key fob being configured to enable the COM circuitry and disable the DIST circuitry when in the inductive power mode. an inductive power generator that can inductively couple to the inductive power circuit of the key fob when the inductive power circuit is within a predetermined coupling zone distance of the inductive power generator; an access controller comprising at least one wireless communication circuit; and characterized by a sensor that senses and reports a presence of the key fob to the access controller, wherein when the presence of the key fob is detected, the inductive power generator is configured to activate and the access controller is configured to attempt to establish wireless communications with the key fob, wherein the key fob comprises COM circuitry for establishing primary wireless communications with corresponding COM circuitry of the access controller and DIST circuitry for performing distance measurements for localization of the key fob, the key fob being configured to enable the COM circuitry and disable the DIST circuitry when in the inductive power mode.