Abstract: An energy harvesting system for use with a vehicle including an RF transmitter positionable in a vehicle and a key fob having an antenna configured to receive an RF signal from the RF transmitter and convert the RF signal to electrical energy, a power management circuit configured to distribute the electrical energy in the key fob, and an energy storage device configured to store at least some of the electrical energy converted from the RF signal.

Abstract: A transponder authorization system and method. The transponder authorization system can include an operator device having a transponder and an antenna coupled to a powersports vehicle. The antenna can generate a field. The transponder authorization system can also include an authorization system electrically connected to the antenna and an ignition switch. The transponder authorization system can also include a button coupled to the ignition switch. The button can be pushed by an operator to actuate the ignition switch. The transponder can receive and transmit a signal when in the presence of the field. The authorization system can verify the signal in order to start the powersports vehicle.