[gRC]

I mod'ed my ZipZaps controller last night to use an AC-to-DC adapter. Basically I opened the controller by removing the screws, drilled a 5/32" hole next to the left side of the battery compartment, and mounted a 3/32" (2.5mm) submini jack (Radio Shack part #274-245). I am using an AC-to-DC adapter rated at 3V and 200mA with a submini plug (#273-1708, Adaptaplug E). For safety I remove the batteries before plugging the adapter into the controller.

This mod seems to be working well. The controller has the same range as before (if not better), and the car is fully charged in the same amount of time. Furthermore, its performance will most likely be more consistent because there is no battery drainage to worry about.

I may post pics and more detailed instructions later if there is interest.

One question: Would there be any benefits in using an AC-to-DC adapter that has a different rating for voltage and/or milliamps? Or are 3V and 200mA really good enough?