This is a speed control unit for the older Digital Powakaddy Freeway with T-Bar battery lead.
The classic symptoms of a Powakaddy that requires a new speed control unit are:
This Speed Control unit is for a Powakaddy Freeway (not Freeway 2) that has a digital readout on the handle. If your Powakaddy does not have digital readout on the handle, then you will require the Standard Powakaddy Speed Controller.